One of a set of bone-like structures in the mouth used for biting and chewing.
The process of TOOTH formation. It is divided into several stages including: the dental lamina stage, the bud stage, the cap stage, and the bell stage. Odontogenesis includes the production of tooth enamel (AMELOGENESIS), dentin (DENTINOGENESIS), and dental cementum (CEMENTOGENESIS).
The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)
Mesodermal tissue enclosed in the invaginated portion of the epithelial enamel organ and giving rise to the dentin and pulp.
The collective tissues from which an entire tooth is formed, including the DENTAL SAC; ENAMEL ORGAN; and DENTAL PAPILLA. (From Jablonski, Dictionary of Dentistry, 1992)
Cylindrical epithelial cells in the innermost layer of the ENAMEL ORGAN. Their functions include contribution to the development of the dentinoenamel junction by the deposition of a layer of the matrix, thus producing the foundation for the prisms (the structural units of the DENTAL ENAMEL), and production of the matrix for the enamel prisms and interprismatic substance. (From Jablonski's Dictionary of Dentistry, 1992)
The emergence of a tooth from within its follicle in the ALVEOLAR PROCESS of the MAXILLA or MANDIBLE into the ORAL CAVITY. (Boucher's Clinical Dental Terminology, 4th ed)
A homeodomain protein that interacts with TATA-BOX BINDING PROTEIN. It represses GENETIC TRANSCRIPTION of target GENES and plays a critical role in ODONTOGENESIS.
The failure to retain teeth as a result of disease or injury.
Epithelial cells surrounding the dental papilla and differentiated into three layers: the inner enamel epithelium, consisting of ameloblasts which eventually form the enamel, and the enamel pulp and external enamel epithelium, both of which atrophy and disappear before and upon eruption of the tooth, respectively.
Any of the eight frontal teeth (four maxillary and four mandibular) having a sharp incisal edge for cutting food and a single root, which occurs in man both as a deciduous and a permanent tooth. (Jablonski, Dictionary of Dentistry, 1992, p820)
A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (From Jablonski, Dictionary of Dentistry, 1992, p286)
The teeth of the first dentition, which are shed and replaced by the permanent teeth.
A normal developing tooth which has not yet perforated the oral mucosa or one that fails to erupt in the normal sequence or time interval expected for the type of tooth in a given gender, age, or population group.
Congenital absence of or defects in structures of the teeth.
The upper part of the tooth, which joins the lower part of the tooth (TOOTH ROOT) at the cervix (TOOTH CERVIX) at a line called the cementoenamel junction. The entire surface of the crown is covered with enamel which is thicker at the extremity and becomes progressively thinner toward the cervix. (From Jablonski, Dictionary of Dentistry, 1992, p216)
An abnormal opening or fissure between two adjacent teeth.
The part of a tooth from the neck to the apex, embedded in the alveolar process and covered with cementum. A root may be single or divided into several branches, usually identified by their relative position, e.g., lingual root or buccal root. Single-rooted teeth include mandibular first and second premolars and the maxillary second premolar teeth. The maxillary first premolar has two roots in most cases. Maxillary molars have three roots. (Jablonski, Dictionary of Dentistry, 1992, p690)
The elaboration of dental enamel by ameloblasts, beginning with its participation in the formation of the dentino-enamel junction to the production of the matrix for the enamel prisms and interprismatic substance. (Jablonski, Dictionary of Dentistry, 1992).
The proteins that are part of the dental enamel matrix.
The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992)
Two teeth united during development by the union of their tooth germs; the teeth may be joined by the enamel of their crowns, by their root dentin, or by both.
An extra tooth, erupted or unerupted, resembling or unlike the other teeth in the group to which it belongs. Its presence may cause malposition of adjacent teeth or prevent their eruption.
Neoplasms composed of primordial GERM CELLS of embryonic GONADS or of elements of the germ layers of the EMBRYO, MAMMALIAN. The concept does not refer to neoplasms located in the gonads or present in an embryo or FETUS.
Loss of the tooth substance by chemical or mechanical processes
The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
A major dental enamel-forming protein found in mammals. In humans the protein is encoded by GENES found on both the X CHROMOSOME and the Y CHROMOSOME.
The surgical removal of a tooth. (Dorland, 28th ed)
A tooth from which the dental pulp has been removed or is necrotic. (Boucher, Clinical Dental Terminology, 4th ed)
The middle germ layer of an embryo derived from three paired mesenchymal aggregates along the neural tube.
A bone morphogenetic protein that is a potent inducer of bone formation. It also functions as a regulator of MESODERM formation during EMBRYONIC DEVELOPMENT.
A tooth that is prevented from erupting by a physical barrier, usually other teeth. Impaction may also result from orientation of the tooth in an other than vertical position in the periodontal structures.
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.
Any change in the hue, color, or translucency of a tooth due to any cause. Restorative filling materials, drugs (both topical and systemic), pulpal necrosis, or hemorrhage may be responsible. (Jablonski, Dictionary of Dentistry, 1992, p253)
A technique that localizes specific nucleic acid sequences within intact chromosomes, eukaryotic cells, or bacterial cells through the use of specific nucleic acid-labeled probes.
A technique for maintenance or growth of animal organs in vitro. It refers to three-dimensional cultures of undisaggregated tissue retaining some or all of the histological features of the tissue in vivo. (Freshney, Culture of Animal Cells, 3d ed, p1)
The constricted part of the tooth at the junction of the crown and root or roots. It is often referred to as the cementoenamel junction (CEJ), the line at which the cementum covering the root of a tooth and the enamel of the tooth meet. (Jablonski, Dictionary of Dentistry, 1992, p530, p433)
One or more layers of EPITHELIAL CELLS, supported by the basal lamina, which covers the inner or outer surfaces of the body.
A family of intercellular signaling proteins that play and important role in regulating the development of many TISSUES and organs. Their name derives from the observation of a hedgehog-like appearance in DROSOPHILA embryos with genetic mutations that block their action.
Lectins purified from the germinating seeds of common wheat (Triticum vulgare); these bind to certain carbohydrate moieties on cell surface glycoproteins and are used to identify certain cell populations and inhibit or promote some immunological or physiological activities. There are at least two isoforms of this lectin.
Physiologic loss of the primary dentition. (Zwemer, Boucher's Clinical Dental Terminology, 4th ed)
Partial or complete displacement of a tooth from its alveolar support. It is commonly the result of trauma. (From Boucher's Clinical Dental Terminology, 4th ed, p312)
Bone-growth regulatory factors that are members of the transforming growth factor-beta superfamily of proteins. They are synthesized as large precursor molecules which are cleaved by proteolytic enzymes. The active form can consist of a dimer of two identical proteins or a heterodimer of two related bone morphogenetic proteins.
The third tooth to the left and to the right of the midline of either jaw, situated between the second INCISOR and the premolar teeth (BICUSPID). (Jablonski, Dictionary of Dentistry, 1992, p817)
Transference of a tissue or organ from either an alive or deceased donor, within an individual, between individuals of the same species, or between individuals of different species.
The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.
The process whereby calcium salts are deposited in the dental enamel. The process is normal in the development of bones and teeth. (Boucher's Clinical Dental Terminology, 4th ed, p43)
One of the eight permanent teeth, two on either side in each jaw, between the canines (CUSPID) and the molars (MOLAR), serving for grinding and crushing food. The upper have two cusps (bicuspid) but the lower have one to three. (Jablonski, Dictionary of Dentistry, 1992, p822)
A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992)
Solid fixation of a tooth resulting from fusion of the cementum and alveolar bone, with obliteration of the periodontal ligament. It is uncommon in the deciduous dentition and very rare in permanent teeth. (Jablonski's Dictionary of Dentistry, 1992)
Progressive loss of the hard substance of a tooth by chemical processes that do not involve bacterial action. (Jablonski, Dictionary of Dentistry, 1992, p296)
Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.
A hollow part of the alveolar process of the MAXILLA or MANDIBLE where each tooth fits and is attached via the periodontal ligament.
Reinsertion of a tooth into the alveolus from which it was removed or otherwise lost.
One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.
Resorption of calcified dental tissue, involving demineralization due to reversal of the cation exchange and lacunar resorption by osteoclasts. There are two types: external (as a result of tooth pathology) and internal (apparently initiated by a peculiar inflammatory hyperplasia of the pulp). (From Jablonski, Dictionary of Dentistry, 1992, p676)
The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.
The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA.
Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.
The three primary germinal layers (ECTODERM; ENDODERM; and MESODERM) developed during GASTRULATION that provide tissues and body plan of a mature organism. They derive from two early layers, hypoblast and epiblast.
The teeth collectively in the dental arch. Dentition ordinarily refers to the natural teeth in position in their alveoli. Dentition referring to the deciduous teeth is DENTITION, PRIMARY; to the permanent teeth, DENTITION, PERMANENT. (From Jablonski, Dictionary of Dentistry, 1992)
A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available.
Measurement of tooth characteristics.
Proteins encoded by homeobox genes (GENES, HOMEOBOX) that exhibit structural similarity to certain prokaryotic and eukaryotic DNA-binding proteins. Homeodomain proteins are involved in the control of gene expression during morphogenesis and development (GENE EXPRESSION REGULATION, DEVELOPMENTAL).
A tooth's loss of minerals, such as calcium in hydroxyapatite from the tooth matrix, caused by acidic exposure. An example of the occurrence of demineralization is in the formation of dental caries.
The 32 teeth of adulthood that either replace or are added to the complement of deciduous teeth. (Boucher's Clinical Dental Terminology, 4th ed)
A restoration designed to remain in service for not less than 20 to 30 years, usually made of gold casting, cohesive gold, or amalgam. (Jablonski, Dictionary of Dentistry, 1992)
Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
The farthest or outermost projections of the body, such as the HAND and FOOT.
Tumors or cancer of the TESTIS. Germ cell tumors (GERMINOMA) of the testis constitute 95% of all testicular neoplasms.
Congenital absence of the teeth; it may involve all (total anodontia) or only some of the teeth (partial anodontia, hypodontia), and both the deciduous and the permanent dentition, or only teeth of the permanent dentition. (Dorland, 27th ed)
The selected form given to a natural tooth when it is reduced by instrumentation to receive a prosthesis (e.g., artificial crown or a retainer for a fixed or removable prosthesis). The selection of the form is guided by clinical circumstances and physical properties of the materials that make up the prosthesis. (Boucher's Clinical Dental Terminology, 4th ed, p239)
The processes occurring in early development that direct morphogenesis. They specify the body plan ensuring that cells will proceed to differentiate, grow, and diversify in size and shape at the correct relative positions. Included are axial patterning, segmentation, compartment specification, limb position, organ boundary patterning, blood vessel patterning, etc.
The fibrous CONNECTIVE TISSUE surrounding the TOOTH ROOT, separating it from and attaching it to the alveolar bone (ALVEOLAR PROCESS).
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth.
A means of identifying the age of an animal or human through tooth examination.
Elements of limited time intervals, contributing to particular results or situations.
Diffusible gene products that act on homologous or heterologous molecules of viral or cellular DNA to regulate the expression of proteins.
The bonelike rigid connective tissue covering the root of a tooth from the cementoenamel junction to the apex and lining the apex of the root canal, also assisting in tooth support by serving as attachment structures for the periodontal ligament. (Jablonski, Dictionary of Dentistry, 1992)
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
The space in a tooth bounded by the dentin and containing the dental pulp. The portion of the cavity within the crown of the tooth is the pulp chamber; the portion within the root is the pulp canal or root canal.
Chromosomal, biochemical, intracellular, and other methods used in the study of genetics.
A malignant neoplasm of the germinal tissue of the GONADS; MEDIASTINUM; or pineal region. Germinomas are uniform in appearance, consisting of large, round cells with vesicular nuclei and clear or finely granular eosinophilic-staining cytoplasm. (Stedman, 265th ed; from DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1642-3)
Death of pulp tissue with or without bacterial invasion. When the necrosis is due to ischemia with superimposed bacterial infection, it is referred to as pulp gangrene. When the necrosis is non-bacterial in origin, it is called pulp mummification.
Euploid male germ cells of an early stage of SPERMATOGENESIS, derived from prespermatogonia. With the onset of puberty, spermatogonia at the basement membrane of the seminiferous tubule proliferate by mitotic then meiotic divisions and give rise to the haploid SPERMATOCYTES.
Supporting cells projecting inward from the basement membrane of SEMINIFEROUS TUBULES. They surround and nourish the developing male germ cells and secrete ANDROGEN-BINDING PROTEIN and hormones such as ANTI-MULLERIAN HORMONE. The tight junctions of Sertoli cells with the SPERMATOGONIA and SPERMATOCYTES provide a BLOOD-TESTIS BARRIER.
The convoluted tubules in the TESTIS where sperm are produced (SPERMATOGENESIS) and conveyed to the RETE TESTIS. Spermatogenic tubules are composed of developing germ cells and the supporting SERTOLI CELLS.
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
Therapeutic technique for replacement of minerals in partially decalcified teeth.
Presentation devices used for patient education and technique training in dentistry.
The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.
Extraoral body-section radiography depicting an entire maxilla, or both maxilla and mandible, on a single film.
Inflammation of the PERIAPICAL TISSUE. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is PERIAPICAL GRANULOMA. Suppurative inflammation is PERIAPICAL ABSCESS.
The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures.
Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.
The gamete-producing glands, OVARY or TESTIS.
Male germ cells derived from SPERMATOGONIA. The euploid primary spermatocytes undergo MEIOSIS and give rise to the haploid secondary spermatocytes which in turn give rise to SPERMATIDS.
The study of the teeth of early forms of life through fossil remains.
Male germ cells derived from the haploid secondary SPERMATOCYTES. Without further division, spermatids undergo structural changes and give rise to SPERMATOZOA.
An operation in which carious material is removed from teeth and biomechanically correct forms are established in the teeth to receive and retain restorations. A constant requirement is provision for prevention of failure of the restoration through recurrence of decay or inadequate resistance to applied stresses. (Boucher's Clinical Dental Terminology, 4th ed, p239-40)
Absence of teeth from a portion of the mandible and/or maxilla.
Synthetic resins, containing an inert filler, that are widely used in dentistry.
An acquired or hereditary condition due to deficiency in the formation of tooth enamel (AMELOGENESIS). It is usually characterized by defective, thin, or malformed DENTAL ENAMEL. Risk factors for enamel hypoplasia include gene mutations, nutritional deficiencies, diseases, and environmental factors.
The relationship of all the components of the masticatory system in normal function. It has special reference to the position and contact of the maxillary and mandibular teeth for the highest efficiency during the excursive movements of the jaw that are essential for mastication. (From Jablonski, Dictionary of Dentistry, 1992, p556, p472)
A radiosensitive, malignant neoplasm of the testis, thought to be derived from primordial germ cells of the sexually undifferentiated embryonic gonad. There are three variants: classical (typical), the most common type; anaplastic; and spermatocytic. The classical seminoma is composed of fairly well differentiated sheets or cords of uniform polygonal or round cells (seminoma cells), each cell having abundant clear cytoplasm, distinct cell membranes, a centrally placed round nucleus, and one or more nucleoli. In the female, a grossly and histologically identical neoplasm, known as dysgerminoma, occurs. (Dorland, 27th ed)
The practice of personal hygiene of the mouth. It includes the maintenance of oral cleanliness, tissue tone, and general preservation of oral health.
An adhesion procedure for orthodontic attachments, such as plastic DENTAL CROWNS. This process usually includes the application of an adhesive material (DENTAL CEMENTS) and letting it harden in-place by light or chemical curing.
The aftermost permanent tooth on each side in the maxilla and mandible.
Use of a metal casting, usually with a post in the pulp or root canal, designed to support and retain an artificial crown.
Dental procedure in which the entire pulp chamber is removed from the crown and roots of a tooth.
Total lack of teeth through disease or extraction.
Materials used in the production of dental bases, restorations, impressions, prostheses, etc.
The structures surrounding and supporting the tooth. Periodontium includes the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.
Pathological processes involving the PERIODONTIUM including the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.
"Decayed, missing and filled teeth," a routinely used statistical concept in dentistry.
Inability or inadequacy of a dental restoration or prosthesis to perform as expected.
Materials placed inside a root canal for the purpose of obturating or sealing it. The materials may be gutta-percha, silver cones, paste mixtures, or other substances. (Dorland, 28th ed, p631 & Boucher's Clinical Dental Terminology, 4th ed, p187)
Dental cements composed either of polymethyl methacrylate or dimethacrylate, produced by mixing an acrylic monomer liquid with acrylic polymers and mineral fillers. The cement is insoluble in water and is thus resistant to fluids in the mouth, but is also irritating to the dental pulp. It is used chiefly as a luting agent for fabricated and temporary restorations. (Jablonski's Dictionary of Dentistry, 1992, p159)
Migration of the teeth toward the midline or forward in the DENTAL ARCH. (From Boucher's Clinical Dental Terminology, 4th ed)
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
The plan, delineation, and location of actual structural elements of dentures. The design can relate to retainers, stress-breakers, occlusal rests, flanges, framework, lingual or palatal bars, reciprocal arms, etc.
Preparatory activities in ROOT CANAL THERAPY by partial or complete extirpation of diseased pulp, cleaning and sterilization of the empty canal, enlarging and shaping the canal to receive the sealing material. The cavity may be prepared by mechanical, sonic, chemical, or other means. (From Dorland, 28th ed, p1700)
A partial denture designed and constructed to be removed readily from the mouth.
An artificial replacement for one or more natural teeth or part of a tooth, or associated structures, ranging from a portion of a tooth to a complete denture. The dental prosthesis is used for cosmetic or functional reasons, or both. DENTURES and specific types of dentures are also available. (From Boucher's Clinical Dental Terminology, 4th ed, p244 & Jablonski, Dictionary of Dentistry, 1992, p643)
The seepage of fluids, debris, and micro-organisms between the walls of a prepared dental cavity and the restoration.
Phase of endodontic treatment in which a root canal system that has been cleaned is filled through use of special materials and techniques in order to prevent reinfection.
Inflammation of the DENTAL PULP, usually due to bacterial infection in dental caries, tooth fracture, or other conditions causing exposure of the pulp to bacterial invasion. Chemical irritants, thermal factors, hyperemic changes, and other factors may also cause pulpitis.
The act and process of chewing and grinding food in the mouth.
Substances used to bond COMPOSITE RESINS to DENTAL ENAMEL and DENTIN. These bonding or luting agents are used in restorative dentistry, ROOT CANAL THERAPY; PROSTHODONTICS; and ORTHODONTICS.
Devices used for influencing tooth position. Orthodontic appliances may be classified as fixed or removable, active or retaining, and intraoral or extraoral. (Boucher's Clinical Dental Terminology, 4th ed, p19)
A paired box transcription factor that is involved in ODONTOGENESIS.
A type of CELL NUCLEUS division, occurring during maturation of the GERM CELLS. Two successive cell nucleus divisions following a single chromosome duplication (S PHASE) result in daughter cells with half the number of CHROMOSOMES as the parent cells.
A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms.
The application of dental knowledge to questions of law.
Dense fibrous layer formed from mesodermal tissue that surrounds the epithelial enamel organ. The cells eventually migrate to the external surface of the newly formed root dentin and give rise to the cementoblasts that deposit cementum on the developing root, fibroblasts of the developing periodontal ligament, and osteoblasts of the developing alveolar bone.
The process of germ cell development in the female from the primordial germ cells through OOGONIA to the mature haploid ova (OVUM).
Technique involving the passage of X-rays through oral structures to create a film record while a central tab or wing of dental X-ray film is being held between upper and lower teeth.
Diseases of the PERIAPICAL TISSUE surrounding the root of the tooth, which is distinguished from DENTAL PULP DISEASES inside the TOOTH ROOT.
Such malposition and contact of the maxillary and mandibular teeth as to interfere with the highest efficiency during the excursive movements of the jaw that are essential for mastication. (Jablonski, Illustrated Dictionary of Dentistry, 1982)
The curve formed by the row of TEETH in their normal position in the JAW. The inferior dental arch is formed by the mandibular teeth, and the superior dental arch by the maxillary teeth.
A partial denture attached to prepared natural teeth, roots, or implants by cementation.
Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.
The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.
A numerical rating scale for classifying the periodontal status of a person or population with a single figure which takes into consideration prevalence as well as severity of the condition. It is based upon probe measurement of periodontal pockets and on gingival tissue status.
Photographic techniques used in ORTHODONTICS; DENTAL ESTHETICS; and patient education.
An alloy used in restorative dentistry that contains mercury, silver, tin, copper, and possibly zinc.
Small metal or ceramic attachments used to fasten an arch wire. These attachments are soldered or welded to an orthodontic band or cemented directly onto the teeth. Bowles brackets, edgewise brackets, multiphase brackets, ribbon arch brackets, twin-wire brackets, and universal brackets are all types of orthodontic brackets.
A polymer obtained by reacting polyacrylic acid with a special anion-leachable glass (alumino-silicate). The resulting cement is more durable and tougher than others in that the materials comprising the polymer backbone do not leach out.
Inflammation of gum tissue (GINGIVA) without loss of connective tissue.
A white powder prepared from lime that has many medical and industrial uses. It is in many dental formulations, especially for root canal filling.
Skills, techniques, standards, and principles used to improve the art and symmetry of the teeth and face to improve the appearance as well as the function of the teeth, mouth, and face. (From Boucher's Clinical Dental Terminology, 4th ed, p108)
A plant genus of the family POACEAE that is the source of EDIBLE GRAIN. A hybrid with rye (SECALE CEREALE) is called TRITICALE. The seed is ground into FLOUR and used to make BREAD, and is the source of WHEAT GERM AGGLUTININS.
Restorations of metal, porcelain, or plastic made to fit a cavity preparation, then cemented into the tooth. Onlays are restorations which fit into cavity preparations and overlay the occlusal surface of a tooth or teeth. Onlays are retained by frictional or mechanical factors.
Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration.
The process of germ cell development from the primordial GERM CELLS to the mature haploid GAMETES: ova in the female (OOGENESIS) or sperm in the male (SPERMATOGENESIS).
Fixed or removable devices that join teeth together. They are used to repair teeth that are mobile as a result of PERIODONTITIS.
The reproductive organ (GONADS) in female animals. In vertebrates, the ovary contains two functional parts: the OVARIAN FOLLICLE for the production of female germ cells (OOGENESIS); and the endocrine cells (GRANULOSA CELLS; THECA CELLS; and LUTEAL CELLS) for the production of ESTROGENS and PROGESTERONE.
Coagulated exudate isolated from several species of the tropical tree Palaquium (Sapotaceae). It is the trans-isomer of natural rubber and is used as a filling and impression material in dentistry and orthopedics and as an insulator in electronics. It has also been used as a rubber substitute.
Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed)
Tissue surrounding the apex of a tooth, including the apical portion of the periodontal membrane and alveolar bone.
Agents used to occlude dental enamel pits and fissures in the prevention of dental caries.
A true neoplasm composed of a number of different types of tissue, none of which is native to the area in which it occurs. It is composed of tissues that are derived from three germinal layers, the endoderm, mesoderm, and ectoderm. They are classified histologically as mature (benign) or immature (malignant). (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1642)
Cements that act through infiltration and polymerization within the dentinal matrix and are used for dental restoration. They can be adhesive resins themselves, adhesion-promoting monomers, or polymerization initiators that act in concert with other agents to form a dentin-bonding system.
The formation of dentin. Dentin first appears in the layer between the ameloblasts and odontoblasts and becomes calcified immediately. Formation progresses from the tip of the papilla over its slope to form a calcified cap becoming thicker by the apposition of new layers pulpward. A layer of uncalcified dentin intervenes between the calcified tissue and the odontoblast and its processes. (From Jablonski, Dictionary of Dentistry, 1992)
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
The epithelium lining the seminiferous tubules composed of primary male germ cells (SPERMATOGONIA) and supporting SERTOLI CELLS. As SPERMATOGENESIS proceeds, the developing germ cells migrate toward the lumen. The adluminal compartment, the inner two thirds of the tubules, contains SPERMATOCYTES and the more advanced germ cells.
The phase of orthodontics concerned with the correction of malocclusion with proper appliances and prevention of its sequelae (Jablonski's Illus. Dictionary of Dentistry).
Orthodontic movement in the coronal direction achieved by outward tension on the PERIODONTAL LIGAMENT. It does not include the operative procedure that CROWN LENGTHENING involves.
A malignant ovarian neoplasm, thought to be derived from primordial germ cells of the sexually undifferentiated embryonic gonad. It is the counterpart of the classical seminoma of the testis, to which it is both grossly and histologically identical. Dysgerminomas comprise 16% of all germ cell tumors but are rare before the age of 10, although nearly 50% occur before the age of 20. They are generally considered of low-grade malignancy but may spread if the tumor extends through its capsule and involves lymph nodes or blood vessels. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1646)
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.
A dental specialty concerned with the maintenance of the dental pulp in a state of health and the treatment of the pulp cavity (pulp chamber and pulp canal).
The planning, calculation, and creation of an apparatus for the purpose of correcting the placement or straightening of teeth.
An abnormal extension of a gingival sulcus accompanied by the apical migration of the epithelial attachment and bone resorption.
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Dental procedure in which part of the pulp chamber is removed from the crown of a tooth.
A type of porcelain used in dental restorations, either jacket crowns or inlays, artificial teeth, or metal-ceramic crowns. It is essentially a mixture of particles of feldspar and quartz, the feldspar melting first and providing a glass matrix for the quartz. Dental porcelain is produced by mixing ceramic powder (a mixture of quartz, kaolin, pigments, opacifiers, a suitable flux, and other substances) with distilled water. (From Jablonski's Dictionary of Dentistry, 1992)
A disorder characterized by grinding and clenching of the teeth.
Resorption or wasting of the tooth-supporting bone (ALVEOLAR PROCESS) in the MAXILLA or MANDIBLE.
A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from x-ray film or any other detector. (From MEDLINE abstracts; personal communication from Dr. Charles Berthold, NIDR)
A commonly used prosthesis that results in a strong, permanent restoration. It consists of an electrolytically etched cast-metal retainer that is cemented (bonded), using resins, to adjacent teeth whose enamel was previously acid-treated (acid-etched). This type of bridgework is sometimes referred to as a Maryland bridge.
The generic term for salts derived from silica or the silicic acids. They contain silicon, oxygen, and one or more metals, and may contain hydrogen. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th Ed)
Characteristics or attributes of the outer boundaries of objects, including molecules.
Radiographic techniques used in dentistry.
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
A prosthesis or restoration placed for a limited period, from several days to several months, which is designed to seal the tooth and maintain its position until a permanent restoration (DENTAL RESTORATION, PERMANENT) will replace it. (From Jablonski, Dictionary of Dentistry, 1992)
Natural teeth or teeth roots used as anchorage for a fixed or removable denture or other prosthesis (such as an implant) serving the same purpose.
Polymeric resins derived from OXIRANES and characterized by strength and thermosetting properties. Epoxy resins are often used as dental materials.

Msx1 is required for the induction of Patched by Sonic hedgehog in the mammalian tooth germ. (1/161)

We have used the mouse developing tooth germ as a model system to explore the transmission of Sonic hedgehog (Shh) signal in the induction of Patched (Ptc). In the early developing molar tooth germ, Shh is expressed in the dental epithelium, and the transcripts of Shh downstream target genes Ptc and Gli1 are expressed in dental epithelium as well as adjacent mesenchymal tissue. The homeobox gene Msx1 is also expressed in the dental mesenchyme of the molar tooth germ at this time. We show here that the expression of Ptc, but not Gli1, was downregulated in the dental mesenchyme of Msx1 mutants. In wild-type E11.0 molar tooth mesenchyme SHH-soaked beads induced the expression of Ptc and Gli1. However, in Msx1 mutant dental mesenchyme SHH-soaked beads were able to induce Gli1 but failed to induce Ptc expression, indicating a requirement for Msx1 in the induction of Ptc by SHH. Moreover, we show that another signaling molecule, BMP4, was able to induce Ptc expression in wild-type dental mesenchyme, but induced a distinct expression pattern of Ptc in the Msx1 mutant molar mesenchyme. We conclude that in the context of the tooth germ Msx1 is a component of the Shh signaling pathway that leads to Ptc induction. Our results also suggest that the precise pattern of Ptc expression in the prospective tooth-forming region is controlled and coordinated by at least two inductive signaling pathways.  (+info)

An immunocytochemical study of amelogenin proteins in the developing tooth enamel of the gar-pike, Lepisosteus oculatus (Holostei, Actinopterygii). (2/161)

Previous studies have demonstrated the morphological similarity of the enamel-like layer found in the teeth of the coelacanth, lungfish and gar-pike to the enamel of tetrapods. In order to clarify the phylogenetic continuity between both structures, tooth germs of the gar-pike were immunocytochemically studied using an anti-bovine amelogenin polyclonal antibody. Intense immunoreaction was shown over the enamel-like matrix layer. Certain cell organelles associated with the secretory pathway of the ameloblasts were recognized as immunoreactive. These results indicate that the enamel-like layer of the gar-pike is a tissue homologous with the mammalian enamel because both possess a common, amelogenin-like substance.  (+info)

Antagonistic signals between BMP4 and FGF8 define the expression of Pitx1 and Pitx2 in mouse tooth-forming anlage. (3/161)

Members of the Pitx/RIEG family of homeodomain-containing transcription factors have been implicated in vertebrate organogenesis. In this study, we examined the expression and regulation of Pitx1 and Pitx2 during mouse tooth development. Pitx1 expression is detected in early development in a widespread pattern, in both epithelium and mesenchyme, covering the tooth-forming region in the mandible, and is then maintained in the dental epithelium from the bud stage to the late bell stage. Pitx2 expression, on the other hand, is restricted to the dental epithelium throughout odontogenesis. Interestingly, from E9.5 to E10.5, the expression domains of Pitx1 and Pitx2, in the developing mandible, overlap with that of Fgf8 but are exclusive to the zone of Bmp4 expression. Bead implantation experiments demonstrate that ectopic expression of Fgf8 can induce/maintain the expression of both Pitx1 and Pitx2 at E9.5. In contrast, Bmp4-expressing tissues and BMP4-soaked beads were able to repress Pitx1 expression in mandibular mesenchyme and Pitx2 expression in the presumptive dental epithelium, respectively. However, the effects of FGF8 and BMP4 are transient. It thus appears that the early expression patterns of Pitx1 and Pitx2 in the developing mandible are regulated by the antagonistic effects of FGF8 and BMP4 such that the Pitx1 and Pitx2 expression patterns are defined. These results indicate that the epithelial-derived signaling molecules are responsible not only for restricting specific gene expression in the dental mesenchyme, but also for defining gene expression in the dental epithelium.  (+info)

Proteinases in developing dental enamel. (4/161)

For almost three decades, proteinases have been known to reside within developing dental enamel. However, identification and characterization of these proteinases have been slow and difficult, because they are present in very small quantities and they are difficult to purify directly from the mineralizing enamel. Enamel matrix proteins such as amelogenin, ameloblastin, and enamelin are cleaved by proteinases soon after they are secreted, and their cleavage products accumulate in the deeper, more mature enamel layers, while the full-length proteins are observed only at the surface. These results suggest that proteinases are necessary for "activating" enamel proteins so the parent proteins and their cleavage products may perform different functions. A novel matrix metalloproteinase named enamelysin (MMP-20) was recently cloned from tooth tissues and was later shown to localize primarily within the most recently formed enamel. Furthermore, recombinant porcine enamelysin was demonstrated to cleave recombinant porcine amelogenin at virtually all of the sites that have previously been described in vivo. Therefore, enamelysin is at least one enzyme that may be important during early enamel development. As enamel development progresses to the later stages, a profound decrease in the enamel protein content is observed. Proteinases have traditionally been assumed to degrade the organic matrix prior to its removal from the enamel. Recently, a novel serine proteinase named enamel matrix serine proteinase-1 (EMSP1) was cloned from enamel organ epithelia. EMSP1 localizes primarily to the early maturation stage enamel and may, therefore, be involved in the degradation of proteins prior to their removal from the maturing enamel. Other, as yet unidentified, proteinases and proteinase inhibitors are almost certainly present within the forming enamel and await discovery.  (+info)

A new function of BMP4: dual role for BMP4 in regulation of Sonic hedgehog expression in the mouse tooth germ. (5/161)

The murine tooth development is governed by sequential and reciprocal epithelial-mesenchymal interactions. Multiple signaling molecules are expressed in the developing tooth germ and interact each other to mediate the inductive tissue interactions. Among them are Sonic hedgehog (SHH), Bone Morphogenetic Protein-2 (BMP2) and Bone Morphogenetic Protein-4 (BMP4). We have investigated the interactions between these signaling molecules during early tooth development. We found that the expression of Shh and Bmp2 is downregulated at E12.5 and E13.5 in the dental epithelium of the Msx1 mutant tooth germ where Bmp4 expression is significantly reduced in the dental mesenchyme. Inhibition of BMP4 activity by noggin resulted in repression of Shh and Bmp2 in wild-type dental epithelium. When implanted into the dental mesenchyme of Msx1 mutants, beads soaked with BMP4 protein were able to restore the expression of both Shh and Bmp2 in the Msx1 mutant epithelium. These results demonstrated that mesenchymal BMP4 represents one component of the signal acting on the epithelium to maintain Shh and Bmp2 expression. In contrast, BMP4-soaked beads repressed Shh and Bmp2 expression in the wild-type dental epithelium. TUNEL assay indicated that this suppression of gene expression by exogenous BMP4 was not the result of an increase in programmed cell death in the tooth germ. Ectopic expression of human Bmp4 to the dental mesenchyme driven by the mouse Msx1 promoter restored Shh expression in the Msx1 mutant dental epithelium but repressed Shh in the wild-type tooth germ in vivo. We further demonstrated that this regulation of Shh expression by BMP4 is conserved in the mouse developing limb bud. In addition, Shh expression was unaffected in the developing limb buds of the transgenic mice in which a constitutively active Bmpr-IB is ectopically expressed in the forelimb posterior mesenchyme and throughout the hindlimb mesenchyme, suggesting that the repression of Shh expression by BMP4 may not be mediated by BMP receptor-IB. These results provide evidence for a new function of BMP4. BMP4 can act upstream to Shh by regulating Shh expression in mouse developing tooth germ and limb bud. Taken together, our data provide insight into a new regulatory mechanism for Shh expression, and suggest that this BMP4-mediated pathway in Shh regulation may have a general implication in vertebrate organogenesis.  (+info)

Wnt/Shh interactions regulate ectodermal boundary formation during mammalian tooth development. (6/161)

Interactions between the Wnt (wingless) and hedgehog signaling pathways were first described as playing a role in establishing boundaries between ectodermal cells in Drosophila segmentation. During the initiation of mammalian tooth development, boundaries that distinguish oral from dental ectoderm must be formed to correctly position the sites of tooth formation. We describe a reciprocal relationship between the expression of Wnt-7b in presumptive oral ectoderm and Shh in presumptive dental ectoderm in mouse embryos that mark boundaries between these cells with different developmental fates. By using a murine retrovirus to ectopically express Wnt-7b in presumptive dental ectoderm in mandibular arch explants, we show that Shh expression in the ectoderm and Ptc expression in the underlying ectomesenchyme are down-regulated, and tooth development is subsequently arrested. This suggests that Wnt-7b acts to repress Shh expression in oral ectoderm, thus maintaining the boundaries between oral and dental ectodermal cells. Implantation of beads soaked in Shh protein into Wnt-7b-infected explants resulted in complete rescue of tooth development, confirming that the repressive action of Wnt-7b specifically affects Shh signaling.  (+info)

Nestin expression in embryonic and adult human teeth under normal and pathological conditions. (7/161)

Nestin is an intermediate filament most related to neurofilaments and expressed predominantly in the developing nervous system and muscles. In the present study we examined the in vivo distribution of nestin in human teeth during embryonic development and in permanent teeth under normal and pathological conditions. The results show that nestin is first expressed at the bell stage and that its distribution is restricted in pulpal cells located at the cusp area of the fetal teeth. In young permanent teeth, nestin is found only in functional odontoblasts, which produce the hard tissue matrix of dentin. Expression is progressively down-regulated and nestin is absent from older permanent teeth. In carious and injured teeth, nestin expression is up-regulated in a selective manner in odontoblasts surrounding the injury site, showing a link between tissue repair competence and nestin up-regulation under pathological conditions. In an in vitro assay system of human dental pulp explants, nestin is up-regulated after local application of bone morphogenic protein-4. A similar effect is seen in cultures of primary pulp cells during their differentiation into odontoblasts. Taken together, these results suggest that nestin plays a potential role in odontoblast differentiation during normal and pathological conditions and that bone morphogenic protein-4 is involved in nestin up-regulation.  (+info)

Molecular signaling and pulpal nerve development. (8/161)

The purpose of this review is to discuss molecular factors influencing nerve growth to teeth. The establishment of a sensory pulpal innervation occurs concurrently with tooth development. Epithelial/mesenchymal interactions initiate the tooth primordium and change it into a complex organ. The initial events seem to be controlled by the epithelium, and subsequently, the mesenchyme acquires odontogenic properties. As yet, no single initiating epithelial or mesenchymal factor has been identified. Axons reach the jaws before tooth formation and form terminals near odontogenic sites. In some species, local axons have an initiating function in odontogenesis, but it is not known if this is also the case with mammals. In diphyodont mammals, the primary dentition is replaced by a permanent dentition, which involves a profound remodeling of terminal pulpal axons. The molecular signals underlying this remodeling remain unknown. Due to the senescent deterioration of the dentition, the target area of tooth nerves shrinks with age, and these nerves show marked pathological-like changes. Nerve growth factor and possibly also brain-derived neurotrophic factor seem to be important in the formation of a sensory pulpal innervation. Neurotrophin-3 and -4/5 are probably not involved. In addition, glial cell line-derived neurotrophic factor, but not neurturin, seems to be involved in the control of pulpal axon growth. A variety of other growth factors may also influence developing tooth nerves. Many major extracellular matrix molecules, which can influence growing axons, are present in developing teeth. It is likely that these molecules influence the growing pulpal axons.  (+info)

TY - JOUR. T1 - Glycosphingolipids regulate ameloblastin expression in dental epithelial cells. AU - Kamasaki, Y.. AU - Nakamura, T.. AU - Yoshizaki, Keigo. AU - Iwamoto, T.. AU - Yamada, A.. AU - Fukumoto, E.. AU - Maruya, Y.. AU - Iwabuchi, K.. AU - Furukawa, K.. AU - Fujiwara, T.. AU - Fukumoto, Satoshi. PY - 2012/1/1. Y1 - 2012/1/1. N2 - Neurotrophin 4 (NT-4) and its receptors regulate the differentiation of ameloblasts in tooth development. Gangliosides, sialic acids that contain glycosphingolipids (GSLs), are involved in a variety of membrane-associated cell physiological functions such as ligand-receptor signal transmission. However, the expression patterns and functions of GSLs during tooth development remain unclear. In this study, we identified strong expressions of GM3 and LacCer in dental epithelium, which give rise to differentiation into enamel-secreting ameloblasts. Exogenous GM3 and LacCer in dental epithelial cells induced the expression of ameloblastin (Ambn), while it was also ...
The bell stage is known for the histodifferentiation and morphodifferentiation that takes place. The dental organ is bell-shaped during this stage, and the majority of its cells are called stellate reticulum because of their star-shaped appearance.. THE BELL STAGE IS DIVIDED INTO EARLY BELL STAGE & LATE BELL STAGES. Continue reading →. ...
We have studied the expression of transforming growth factor beta-1 (TGF-beta 1) RNA during mouse tooth development, using in situ hybridization and experimental tissue recombinations. Analysis of the serial sections revealed the appearance of local expression of TGF-beta 1 RNA in the dental epithelium at bud- staged teeth (13-day embryos). Just before transition to the cap stage, TGF-beta 1 RNA expression rapidly increased in the epithelial bud, and it also extended to the condensed dental mesenchyme. At cap stage (14- and 15-day embryos), there was an intense expression of TGF-beta 1 RNA in the morphologically active cervical loops of the dental epithelium. During early bell stage (16- and 17-day embryos), TGF-beta 1 RNA expression was detected in the inner enamel epithelium where it subsequently almost disappeared (18- day embryos). After birth TGF-beta 1 transcripts transiently appeared in these cells when they were differentiating into ameloblasts (1-day mice). The transcripts were lost ...
MicroRNAs (miRNAs) are an abundant class of noncoding RNAs that are believed to be important in many biological processes through regulation of gene expression. Little is known of their function in tooth morphogenesis and differentiation. MicroRNA-214 (miR-214), encoded by the polycistronic Dnm30os gene, is highly expressed during development of molar tooth germ and was selected as a target for silencing with anti-miR-214. Mandibular injection of 1-100 pmol of anti-miR-214 close to the developing first molar in newborn mice resulted in significant decrease in expression of miR-214, miR-466h, and miR-574-5p in the tooth germ. Furthermore, levels of miR-199a-3p, miR-199a-5p, miR-690, miR-720, and miR-1224 were significantly increased. Additionally, the expression of 863 genes was significantly increased and the expression of 305 genes was significantly decreased. Among the genes with increased expression was Twist-1 and Ezh2, suggested to regulate expression of miR-214. Microarray results were ...
No expression: oral epithelium, outer enamel epithelium, inner enamel epithelium, enamel knot, stellate reticulum, dental papilla, dental sac ...
J:83512 Hikake T, Mori T, Iseki K, Hagino S, Zhang Y, Takagi H, Yokoya S, Wanaka A, Comparison of expression patterns between CREB family transcription factor OASIS and proteoglycan core protein genes during murine tooth development. Anat Embryol (Berl). 2003 Apr;206(5):373-80 ...
Homeobox protein MSX-1 (hereafter referred to as MSX-1) is essential for early tooth-germ development. Tooth-germ development is arrested at bud stage in Msx1 knockout mice, which prompted us to study the functions of MSX-1 beyond this stage. Here, we investigated the roles of MSX-1 during late bell stage. Mesenchymal cells of the mandibular first molar were isolated from mice at embryonic day (E)17.5 and cultured in vitro. We determined the expression levels of β-catenin, bone morphogenetic protein 2 (Bmp2), Bmp4, and lymphoid enhancer-binding factor 1 (Lef1) after knockdown or overexpression of Msx1 ...
Early tooth decay is damage on the tooths enamel, and can happen anywhere on the tooth, and at any age. The good news is that its very treatable.
Skalleberg, Natalie Sharim; Xianbin, Yang; Babaie, Eshrat; Crystal, John Michael; Geronimo, Benedicto Abrigos; Reseland, Janne Elin; Osmundsen, Harald & Landin, Maria Augusta Dos S Silva (2018). Effects of miR-214 knockout on 214/199 cluster expression levels during mineralization of the first murine molar. PLoS biology. ISSN 1544-9173. Vis sammendrag The objectives of this study were to investigate the effects induced on the 214/199 cluster and consequently murine miRNome while miR-214 was temporarily knocked out on the first murine molar. Endogenous expression of individual microRNAs (miRNAs) of 214/199 cluster during mineralization stages was also mapped. Nucleotide alignment of miR-214 mature sequence and comparative genomics was used to find target genes for this miR during mineralization of the first murine molar. The effects of temporary knockdown of miR-214 were induced by in vivo transfection with antagomir-214 in situ at the first murine molar. The expression levels of microRNAs (miRs) ...
It was shown in both mouse and human tooth development that PAX9 and MSX1 are the most important genes regulating progression through early stages of tooth development. These genes are encoding transcription factors involved in epithelial/mesenchymal interactions. Their key function seems to be maintenance and regulation of Bmp4 expression in dental mesenchyme. If the functions of PAX9 and MSX1 are disturbed, the tooth will not develop.
Teeth. Polarised light micrograph of a section through molar teeth in the lower jaw. Molar teeth are used for grinding up and chewing food. The crowns of these teeth have caps of enamel (grey band, upper centre). This is the hardest substance in the body, and prevents wearing of the tooth. The teeth are anchored in the gum by their roots (blue/green). Their pulp cavities (black, centre left and right) contain nerves and blood vessels. This pulp is surrounded by dentine (many colours) which forms the bulk of the tooth. This is a tissue similar to bone but harder. - Stock Image P486/0071
So, you lost a tooth. Dont despair! If you dont have the bucks to have a dentist install an implant or a bridge right now, you can replace the tooth yourself. Youll have to have one tooth on each side of the missing tooth for this procedure to work. If thats the case, you can replace your missing tooth in less than an hour. This is not to suggest that you can or should be your own dentist in all situations, or that a replacement tooth made by you will last as long as one made by Read more [...] ...
The med ma have indeed played its role because with our baby teeth we have our permanent teeth developing just under them and whatever that med was must have disrupted the tooth formation and mineralization balance. It would be interesting to find out the exact name of the med and research some current literature on it and see if it is still used. There many teeth that have side-effects in the mouth and on teeth but physicians rarely mention those side-effects ...
A dental bridge is a way of replacing one or more missing teeth by permanently fixing the replacement tooth to one or more of your own standing teeth. As with most things, theres more than one way of doing this and each comes with its own pros...
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J:112545 Wang XP, Aberg T, James MJ, Levanon D, Groner Y, Thesleff I, Runx2 (Cbfa1) inhibits Shh signaling in the lower but not upper molars of mouse embryos and prevents the budding of putative successional teeth. J Dent Res. 2005 Feb;84(2):138-43 ...
Tooth development or odontogenesis is the complex process by which tooth form from embryonic cells,grow, and erupt into the mouth. For human teeth to have a healthy oral environment, all parts of the tooth must develop during appropriate stages of fetal development. Primary (baby) teeth start to form between the sixth and eighth week of prenatal development, and permanent teeth begin to form in the twentieth week. If teeth do not start to develop at or near these times, they will not develop at all, resulting in Hypodontia or Anodontia.. Tooth development is commonly divided into the following stages: the initiation stage, the bud stage, the cap stage, the bell stage, and finally maturation.. Initiation Stage. One of the earliest signs in the formation of a tooth that can be seen microscopically is the distinction between the vestibular lamina and the dental lamina. The dental lamina connects the developing tooth bud to the epithelial layer of the mouth for a significant time. This is regarded ...
Pituitary adenylate cyclase activating polypeptide (PACAP) is a pleiotropic neuropeptide with widespread distribution. It plays pivotal role in neuronal development. PACAP-immunoreactive fibers have been found in the tooth pulp, and recently, it has been shown that PACAP may also play a role in the regeneration of the periodontium after luxation injuries. However, there is no data about the effect of endogenous PACAP on tooth development. Ectodermal organogenesis including tooth development is regulated by different members of bone morphogenetic protein (BMP), fibroblast growth factor (FGF), hedgehog (HH), and Wnt families. There is also a growing evidence to support the hypothesis that PACAP interacts with sonic hedgehog (SHH) receptor (PTCH1) and its downstream target (Gli1) suggesting its role in tooth development. Therefore, our aim was to study molar tooth development in mice lacking endogenous PACAP. In this study morphometric, immunohistochemical and structural comparison of molar teeth ...
Whatever the reason, many folks are turned away from the idea of braces. They pin their hopes on the imagined chance that their childrens teeth will gradually and naturally straight out.. Is there any basis for this reasoning?. Normal Tooth Spacing is Age-Dependent. As the adult take over the places baby teeth once rested in, things get a little messy!. Permanent teeth grow in as the jaw expands. Some adult teeth come in before the baby teeth are out of the way. All of this change leads to some overlapping and big gaps.. For instance, the bottom front teeth often erupt towards the tongue. This can be a little alarming, but these teeth actually should straighten out on their own.. If most teeth can naturally even out, at what point are braces necessary?. Early Ortho Evaluations Save Smiles!. Its a good idea for kids to visit an orthodontist by around the age of 7. This is a great time for the dentist to see how tooth development is progressing and anticipate how severe problems can be. At this ...
Pitx2, Wnt/-catenin signaling, and microRNAs (miRs) play a critical part in the control of teeth control cells during embryonic advancement. well mainly because ameloblast particular elements. The mixture of Pitx2, a regulator of dental care come cells and changes mesenchymal cells to a completely differentiated dental care epithelial cell type. This path and reprogramming can become utilized to reprogram mesenchymal or dental epithelial cells to dental care epithelial (ameloblast) cells, which can become utilized in cells restoration and regeneration research. development of locks follicles, feather pals, mammary placodes, flavor pals, and tooth (4, 11,C17). Wnt/-catenin signaling is definitely needed for multiple phases of teeth advancement and dental care epithelial cell expansion and difference (14). The Lef-1 transcription element manages genetics included in cell expansion and Dihydromyricetin supplier difference. insufficiency causes caught teeth advancement at the bud stage in rodents, ...
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Reduce rotating weight from your drivetrain with an Edit hard coated 48-pitch (48DP) aluminium pinion gear. Long wear and lifetime from the hard coating. This 17-tooth pinion gear weighs just 1.0g, 74% lighter than a standard pinion gear! Includes an M3 grub screw for attaching to your motor, plus a small Edit logo decal sheet for customizing your bodyshell and gear. Get a complete set of Edit Hard Coated Pinion Gears! #ED200150 15-Tooth Hard Coated 48DP Pinion #ED200160 16-Tooth Hard Coated 48DP Pinion #ED200170 17-Tooth Hard Coated 48DP Pinion #ED200180 18-Tooth Hard Coated 48DP Pinion #ED200190 19-Tooth Hard Coated 48DP Pinion #ED200200 20-Tooth Hard Coated 48DP Pinion #ED200210 21-Tooth Hard Coated 48DP Pinion #ED200220 22-Tooth Hard Coated 48DP Pinion #ED200230 23-Tooth Hard Coated 48DP Pinion #ED200240 24-Tooth Hard Coated 48DP Pinion #ED200250 25-Tooth Hard Coated 48DP Pinion #ED200260 26-Tooth Hard Coated 48DP Pinion #ED200270 27-Tooth Hard Coated 48DP Pinion #ED200280 28-Tooth Hard ...
Like many other organs, the tooth develops as a result of the epithelial-mesenchymal interactions. In addition, the tooth is a well-defined peripheral target organ for sensory trigeminal nerves, which are required for the function and protection of the teeth. Dental trigeminal axon growth and patter …
ICD-9 code 520.9 for Unspecified disorder of tooth development and eruption is a medical classification as listed by WHO under the range - DISEASES OF
For the study, the researchers first used chemicals to entice the cultured iPSCs into flat sheets of epithelial cells. Next, they combined these cells with mouse embryonic mesenchymal cells, and then transplanted them into mice. After three weeks, structures had grown that physically resembled human teeth. They also had the same elasticity as human teeth and contained pulp, dentin and enamel-forming cells.. This breakthrough offers new hope for the future of regenerative medicine. By the same token, the technique used to generate human teeth-like structures involves mouse cells, and has a success rate of only 30 percent. Moreover, the structures are approximately only one-third as hard as human teeth. Accordingly, the researchers says human mesenchymal stem cells could be substituted for mouse cells, and the tissue culture conditions tweaked in order to resolve the problem. By doing this, it could theoretically result in the creation of a bioengineered tooth bud that has been cultured in a jar ...
Do your teeth reflect your health? The world famous dentist Weston A. Price believed this to be true.. Price pioneered the belief that nutrition directly affects our teeth. Even in the early 1900s, he believed that our modern-day diet of processed and refined food directly affected the health of our teeth. So, Dr. Price made it his mission to find out what our teeth really needed to stay healthy and cavity free.. After examining the teeth of many native tribes around the world (all of which had remarkable teeth-without even brushing), Dr. Price created a diet to prevent and treat dental decay.. Using this nutritional approach, Dr. Price was able to prevent over 95% of cavities.?Once the diet was followed correctly and for an adequate amount of time, he saw cavities actually heal themselves. This may seem crazy, but if bones can heal themselves after a fracture or break, a tooth can heal, too. We can literally remineralize our teeth so that holes from cavities can fill in!. Dr. Prices dietary ...
Crowns are restorations that replace the visible structure of a damaged tooth. A bridge is a replacement tooth anchored by crowns or existing teeth. Call!
How many teeth have you lost? In Britain the tooth fairy takes your tooth away and leaves a coin. Is there a tooth fairy in your country? Remember, we say one tooth and two teeth!
Question - Had a permanent filling in molar tooth, painful. Suggested RCT. What is going on?. Ask a Doctor about when and why X ray is advised, Ask a Dentist
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Stutts and Carpenter, DDS, located in Greensboro, NC, offer dental implants as a foundation for replacement teeth that look, feel and function like natural teeth.
Teething can be an uncomfortable time for some babies. As the teeth begin to emerge, they can cause the gums to become swollen and sore. This can lead to other problems such as irritability, an inability to sleep and an unwillingness to eat food because of the pain.. Of course, teething can also be a difficult time for the parents too. Once those teeth start to appear, some babies want to bite down on everything they can get hold of - including mum and dads fingers a lot of the time!. As well as behaviour such as biting, it can simply be difficult for parents because they find it hard to soothe their babys hurting gums. Every baby teeths at a different time and it lasts for different periods. So there is no manual you can consult to make everything run smoothly!. Most babies develop their first teeth between the ages of four and seven months old. However, your child may not have a complete set of teeth until they reach the age of three. During this time, the bottom middle teeth usually appear ...
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Derek Thompson: You cant handle the Tooth! And thats the Tooth, the whole Tooth and nothing but the Tooth! I pledge allegiance to the Tooth ...
Scientists at the University of Duisburg-Essen (UDE) and the Max-Planck-Institut für Eisenforschung (MPIE) in Düsseldorf have analyzed the structure of shark teeth and human teeth. The results of this
Imagine a microscope with variable and nearly unlimited magnification (a few million can be considered unlimited for this purpose.) Then take a normal tooth, point this microscope at it and zoom in, zoom in more, and then some… [dailymotion]http://www.dailymotion.com/video/x4muob_zoom-into-a-tooth_tech[/dailymotion] It … Continue reading →. ...
Ok, so everybody wants to know, How can I make my teeth whiter? Well sometimes just getting your teeth cleaned professionally will make them whiter. But for most of us, we want to whiten our teeth and there are two options of whitening your teeth.
Lost a tooth, or first trip to the dentist? This adorable Collection is perfect for you. Complete with boy and girl tooth fairies, adorable personified teeth, and dental supplies, and fun tooth fairy boxes, envelopes or bags ...
Tooth bleaching It has been suggested that Tooth whitener be merged into this article or section. (Discuss)   Tooth bleaching, also known as tooth
How to Pull Out a Loose Tooth. All kids get loose teeth that fall out - its the bodys natural way of making room for adult teeth and starts around age six. Its best to let baby teeth fall out on their own if possible.http://www.mayocl...
MH, do you have any treatment recommendations for an abcess tooth? Any way to save the tooth? I understand these can be dangerous, even cause death if untreated. Thanks.` _Original_Message_ ﰩ MH, do you have any treatment recommendations for an abcess tooth? Any way to save the tooth? I understand these can be dangerous, even cause death if untreated. Thanks.
Grinding teeth while sleeping - How to Stop Grinding or Clenching Your Teeth When You Sleep.... Teeth Whiten Tips - Polishes while Whitening, No strips or trays to wear, Removes plaque at the same time, Professional results at home.
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Lady Gaga - Teeth Lyrics. Dont be scared, Ive done this before Show me your teeth Show me your teeth Show me your teeth Dont want no money (Want your money) That
When Josh Brolins agent suggested that the actors rotten molar tooth was keeping him from landing roles, Brolin initially refused to get the tooth pulled. Then, one day, he saw it in a mirror and changed his mind. This story presents several questions. Why would casting directors notice a rotting molar tooth? Why would his agent be aware of it? Why had he never looked at the tooth before? Just how rotten was this tooth? And, finally, why share this story with Mens Journal magazine ...
When Josh Brolins agent suggested that the actors rotten molar tooth was keeping him from landing roles, Brolin initially refused to get the tooth pulled. Then, one day, he saw it in a mirror and changed his mind. This story presents several questions. Why would casting directors notice a rotting molar tooth? Why would his agent be aware of it? Why had he never looked at the tooth before? Just how rotten was this tooth? And, finally, why share this story with Mens Journal magazine ...
A mother says she was shocked when she learned her baby was born with two front teeth. Samantha Lines, 29, of Rugby, Warwickshire, England, called it a complete surprise when she found out her baby, Ella-Rose, was born with two fully formed teeth, the Daily Mail reported. While most babies start teething after six months, Ella-Rose was born with two tiny white lower incisors. Lines admitted her babys teeth made her nervous about breastfeeding.
Define tooth: one of the hard bony appendages that are borne on the jaws or in many of the lower vertebrates on other bones in … - tooth in a sentence
A babys first tooth usually appears between 5 and 7 months of age. Often, the two middle bottom teeth come through the gums first, followed by the middle four upper teeth. We are .... ...
Do you have crooked teeth? Here are some tips on how to take care of your teeth and how to correct crooked teeth to boost your confidence!
Take care of your teeth by being careful of what foods come into contact with your teeth. Read on to read about the link between nutrition and your teeth.
Your untreated abscessed tooth may lead to more dangerous infections. Heres why you should deal with tooth abscess immediately.
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Show me your teeth - teeth set for male and female sims from teen to elder. All LODs, new diffuse map with white teeth. 8 variations. Found in TSR Category Sims 4 Female Skin Details
Brushing your pets teeth - Brushing your pets teeth is essential to their overall health. Have you ever wonder how to brush their teeth or if you are brushing them correctly? Here
A computer is used to create a plan for repositioning an orthodontic patients teeth. The computer receives a digital data set representing the patients teeth and uses the data sets to generate one or more orthodontic views of the patients teeth.
I know this is rare, but my brother has three sets of teeth. Hes had two teeth pulled so far and has grown a new tooth. We have the same parents, my question is what is the possibility that I may have...
Discover the many meanings of dreaming about losing teeth according to Chinese dream theory: losing teeth psychology, tooth loss with blood dreams…
Professional teeth cleaning keeps your teeth healthy. Routine oral checkup and visit to your dentist helps detect early signs teeth problems.
My daughter fell this afternoon and had some slight bleeding on two of her top teeth. She is 3 so they are baby teeth. - Answered by a verified Dentist
Brushing our teeth twice a day is essential for maintaining fresh breath and sparkling teeth. Read and check some mistakes you do while brushing your teeth.
... a sequlae of trauma to developing tooth germ". Journal of Indian Society of Pedodontics and Preventive Dentistry. 26 Suppl 3: ... Developmental defects in enamel that affect tooth appearance in the esthetic zone (i.e. upper front teeth) may cause ... It can be identified as missing tooth structure and may manifest as pits or grooves in the crown of the affected teeth, and in ... Turner's hypoplasia or Turner's tooth is a presentation of enamel hypoplasia that normally affects only a single tooth. Its ...
"Ameloblastin expression in rat incisors and human tooth germs". The International Journal of Developmental Biology. 40 (6): ... Ameloblastin, also known as amelin, is a gene-specific protein found in tooth enamel. Although less than 5% of enamel consists ... is believed to be in controlling the elongation of enamel crystals and generally directing enamel mineralization during tooth ...
... is derived from the dental papilla of the tooth germ. The tooth germ is the primordial structures from which a tooth is ... The outermost layer, known as the mantle dentin layer, is found in the crown of the tooth. It can and can be identified by the ... tooth bud. 2012. Medical Dictionary for the Health Professions and Nursing. Farlex. Ross, Michael H., Gordon I. Kaye, and ... Some mammalian teeth exploit this phenomenon, especially herbivores such as horses, deer or elephants. In many herbivores, the ...
Each epithelial swelling and the surrounding mesenchymal cells form a tooth germ. Tooth germs are the primitive structure of ... Ameloblast Tooth Tooth development Tooth enamel Antonio N (2017-10-13). Ten Cate's oral histology: development, structure, and ... These ameloblasts will move down to the enamel surface of the tooth and the shape of the crown and tooth is then established. ... Each dental arch will have 10 tooth buds, accounting for 20 primary teeth. The cap stage occurs in week 9-10 i.u. Unequal ...
Abnormal tooth germ position. *Delayed eruption. *Dilaceration (an abnormal development in tooth shape) ... 4) Tipping or changing the incline of the long axis of the tooth where the tooth may be proclined or retroclined and the tooth ... erupting teeth and missing teeth are left out in the scoring system and difficulties in judging conformity of each tooth to an ... Each maloccluded tooth is given a value of 1 while tooth in perfect occlusion is given a score of 0. A score of 0 will indicate ...
This is because the root apex of an injured primary tooth lies near the tooth germ of the adult tooth.[8] ... Therefore, a displaced primary tooth will be removed if it is found to have encroached upon the developing adult tooth germ.[8] ... If a tooth is avulsed, make sure it is a permanent tooth (primary teeth should not be replanted, and instead the injury site ... Damage to the successor teeth[edit]. Dental trauma to the primary teeth might cause damage to the permanent teeth. Damage to ...
FGF-10 helps to stimulate epithelial cell proliferation, in order make larger tooth germs. Mammalian teeth develop from ... FGF-9 is an important factor during the initiation of tooth germ development. The rate of epithelial invagination in ... This creates a uniform embryo composed of the three germ layers in their respective positions. Once the three germ layers have ... The ectoderm is one of the three primary germ layers formed in early embryonic development. It is the outermost layer, and is ...
Karlsen, K. (1962). "Development of tooth germs and adjacent structures in the whalebone whale (Balaenoptera physalus)". ... The toothed whales (parvorder Odontoceti), as the name suggests, are characterized by having teeth (rather than baleen). ... and it has no teeth on the upper jaw. A beaked whale is any of at least 22 species of whale in the family Ziphiidae. Several ... two or more fused cervical vertebrae and 20 or more pairs of teeth in their upper jaws. None is more than 4 m long. The ...
Brushing one's teeth is also essential for hygiene and is a part of washing. 'Washing' can also refer to the washing of ... Hand washing is important in reducing the spread of germs. Also common is washing the face, which is done after waking up, or ...
"Expression survey of genes critical for tooth development in the human embryonic tooth germ". Developmental Dynamics. 236 (5): ... However, the remaining teeth of H. floresiensis show similarities to the bigger tooth sizes of the earlier genera ... While the form of the teeth themselves is not affected by post-canine megadontia, the ratio of molar teeth volume to total ... with average post-canine tooth area ranging from approximately 460mm2 and going all the way up to the largest tooth area, ...
Get the New Ipana-it's dandy for your teeth!" Mr. Decay Germ, stylized as D.K. Germ, was the villain in the Ipana toothpaste ... Decay Germ, stay away from me. I'm sick and tired of cavities. Go bother someone else now." Stan Drake, artist of the newspaper ... ads at that time proudly proclaimed that this ingredient made Ipana superior to competitive toothpaste brands in germ-killing ...
Deciduous teeth should not be replanted due to the risk of damaging the permanent tooth germ. Immediate replantation ensures ... Management of injured primary teeth differs from management of permanent teeth; avulsed primary tooth should not be re-planted ... When a tooth is knocked-out, this ligament is stretched and splits in half; half stays on the tooth root and half stays on the ... When a tooth is picked up, it should always be grasped by the enamel on the crown. Finger pressure on the tooth root cells will ...
miR-720 is upregulated in myelodysplastic syndromes, in molar tooth germ in newborn mice following anti-miR-214 injection and ... "Effects of in vivo transfection with anti-miR-214 on gene expression in murine molar tooth germ". Physiol Genomics. 43 (9): 488 ...
No doubt Caraka conceived the germ theory of the causation of diseases, but he rejected the idea that germs are the only ... He gave 360 as the total number of bones, including teeth, present in the human body. He was right when he considered heart to ... Although he was aware of germs in the body, he did not give them primary importance.[10] ... and various germs may grow in the body only when they get such a congenial environment. Both for metabolic diseases and ...
... is derived from the dental papilla of the tooth germ.[5] After apposition of predentin and maturation into dentin, the ... Some mammalian teeth exploit this phenomenon, especially herbivores such as horses, deer or elephants. In many herbivores, the ... The outermost layer, known as the mantle dentin layer is found in the crown of the tooth, and can be identified by the presence ... Differential wearing causes sharp ridges of enamel to be formed on the surface of the tooth (typically a molar), and to remain ...
"Immunohistochemical examination for the distribution of podoplanin-expressing cells in developing mouse molar tooth germs". ... in human squamous cell carcinomas and germ cell tumors". The American Journal of Pathology. 166 (3): 913-21. doi:10.1016/S0002- ... "Podoplanin expression in primary central nervous system germ cell tumors: a useful histological marker for the diagnosis of ...
It also helps in preventing and destroying the germ buildup in teeth and maintaining gum health. However, a 2016 systematic ... The polishing of teeth removes stains from tooth surfaces, but has not been shown to improve dental health over and above the ... "Tooth Whitening". Mayo Clinic Staff. "Whitening toothpaste: Does it actually whiten teeth?". Mayo Clinic. Archived from the ... The "biomimetic hydroxylapatite" is intended to protect the teeth by creating a new layer of synthetic enamel around the tooth ...
An odontoclast (/odon·to·clast/; o-don´to-klast) is an osteoclast associated with absorption of the roots of deciduous teeth. ... List of human cell types derived from the germ layers Medical Histology by Laiq Hussain Siddiqui (6th Edition) "Odontoclast". ... An odontoclast (/odon·to·clast/; o-don´to-klast) is an osteoclast associated with absorption of the roots of deciduous teeth. ... RANKL knockout mice exhibit a phenotype of osteopetrosis and defects of tooth eruption, along with an absence or deficiency of ...
There are forty or more developed teeth in each row, besides ten or twelve undeveloped germs of teeth. The fully developed ... could not be discovered until the mass was boiled in caustic potash in the hope of finding some traces of teeth. The teeth are ... The tooth sac opens near the end of the proboscis, but being filled with coagulated mucus, and extremely reduced in size by ... The shaft is set in a chitinous yellow socket, which is extended on the back of the tooth so as to form a little hooked knob. ...
Germ (Plant Beast): appears in episode 4. Powers include extensible tentacles and emitting massive amounts of carbon dioxide. ... Marmiga (Shark Beast): appears in episode 5. Powers include fast swimming, sharp teeth, a powerful tail, and mouth tentacles. ...
Medicine portal Tooth development Ameloblast Cementoblast List of human cell types derived from the germ layers Ten Cate's Oral ... The tooth is often able to be saved by a simple restoration. In contrast, reparative dentin is secreted when the tooth has a ... because both are originally derived from the dental papilla of the tooth germ. To aid in the secretion of intertubular and ... This is because of the retention of the odontoblasts within the tooth, along the outer pulpal wall. Odontoblasts also secrete ...
The developmental disturbance of anodontia (or hypodontia, if only one tooth), in which tooth germs are congenitally absent, ... Proper development is impossible because the alveolar unit of each dental arch must form in response to the tooth germs in the ... Bony support to teeth adjacent to the cleft is a pre-requisite for orthodontic closure of the teeth in the cleft region. Hence ... on the jaw bones that hold teeth. In humans, the tooth-bearing bones are the maxilla and the mandible. The curved part of each ...
... thus disturbing the initial proliferation of tooth germ.[34] Isolated cases can be autosomal dominant, recessive or even X- ... aplasia of teeth, congenitally missing teeth, absence of teeth, agenesis of teeth and lack of teeth.[2] ... Anodontia refers to the condition where no teeth are present.[1] Supernumerary teeth refers to conditions where there are more ... In persons of European ancestry, the most common missing teeth are the wisdom teeth (25-35%), the permanent upper lateral ...
List of human cell types derived from the germ layers. References[edit]. *^ a b "Odontoclast". Farlex, The Free Dictionary. ... An odontoclast (/odon·to·clast/; o-don´to-klast) is an osteoclast associated with absorption of the roots of deciduous teeth.[1 ... An odontoclast (/odon·to·clast/; o-don´to-klast) is an osteoclast associated with absorption of the roots of deciduous teeth.[1 ... RANKL knockout mice exhibit a phenotype of osteopetrosis and defects of tooth eruption, along with an absence or deficiency of ...
Some mice had a tooth extracted and the cells from bioengineered tooth germs were implanted into them and allowed to grow. The ... King's College London (March 10, 2020). "Teeth That Repair Themselves - Study Finds Success With Natural Tooth Repair Method". ... which requires further damage to be done to the teeth by drilling into them to prevent the loss of an entire tooth. Researchers ... A person's baby teeth are known to contain stem cells that can be used for regeneration of the dental pulp after a root canal ...
The British researchers extracted DNA fragments of the ancient bacterium from the teeth of medieval corpses found in London. ( ... 12 October The genetic code of the germ that caused the 14th-century Black Death has been reconstructed by scientists for the ... co-ordinated the Baby Tooth Survey (b. 1920). 3 January - Anatoliy Skorokhod, Ukrainian mathematician (b. 1930). 4 January - ...
Tooth formation relies on BMP4 expression, which induces Msx 1 and 2. These transcription factors turn the forming tooth to ... Ying Y, Liu XM, Marble A, Lawson KA, Zhao GQ (2000). "Requirement of Bmp8b for the generation of primordial germ cells in the ... The BMP4 signaling has been found in formation of early mesoderm and germ cells. Limb bud regulation and development of the ... Tucker AS, Matthews KL, Sharpe PT (1998). "Transformation of tooth type induced by inhibition of BMP signaling". Science. 282 ( ...
Werner Himstedt has shown that the skin glands of Ichthyophis protects the eggs from germs and fungi. It has also been shown ... The hatchlings of the oviparous East African Boulengerula taitanus have special teeth that allow them to peel and eat their ... which are eaten by the foetus with special scraping teeth. Some larvae, such as those of Typhlonectes, are born with enormous ... which the young peel off with similar teeth. Ichthyophis is oviparous and is known to show maternal care. ...
Gregory, Angela (13 November 2008). "From tooth decay to body odour, professor claims bacteria can beat the bugs". The New ... A third product was later rolled in 2006, TravelGuard, suitable for travelers exposed to airborne germs. In September 2005, ... focused on fighting the bacteria associated with tooth decay and periodontal disease. The BLIS M18 (Streptococcis salivarius) ...
The finger shaped product was designed to help babies cut the back and front teeth whilst exercising the jaw muscles, bones and ... Bickiepegs biscuits are made from wheat flour, wheat germ and water. ... jaw muscles and teeth formation in children and this is reflected in the series published in The Lancet, Observations on ...
C. albicans and C. dubliniensis are also capable of forming germ tubes (incipient hyphae) and chlamydospores under the right ... with no natural teeth remaining). Some report that up to 65% of denture wearers have this condition to some degree. About 90% ...
... after the rinse kills germs in your mouth, the dead germs can collect on the tooth surface and create the appearance of a brown ... Tooth staining[edit]. Crest Pro-Health mouthwash contains Cetylpyridinium chloride which is known to cause tooth staining in ... "Does Crest Pro-Health Rinse stain teeth brown?". Crest. Archived from the original on 2016-03-06. Retrieved 2016-06-06. Tooth ... essentially an island city protected by an enormous wall of teeth), with their signature battle cry "We Make, Holes In Teeth!" ...
The tooth bud (sometimes called the tooth germ) is an aggregation of cells that eventually forms a tooth and is organized into ... Teeth can belong to one of two sets of teeth: primary ("baby") teeth or permanent teeth. Often, "deciduous" may be used in ... For permanent teeth, the upper right teeth begin with the number, "1". The upper left teeth begin with the number, "2". The ... This is true only in permanent teeth. In deciduous teeth, the maxillary second molar is the last tooth in the mouth and does ...
Teeth. Main article: Human tooth. Teeth are complex structures made of materials specific to them. They are made of a bone-like ... Early in embryonic development, the embryo has three germ layers and abuts a yolk sac. During the second week of development, ... As well as its role in supplying digestive enzymes, saliva has a cleansing action for the teeth and mouth.[15] It also has an ... The teeth are named after their particular roles in the process of mastication-incisors are used for cutting or biting off ...
Gnotobiology study of life in germ-free conditions. *Graminology study of grasses ... طب الاسنان study of teeth. *Oenology study of wines. *Oikology science of housekeeping ...
For instance, a beaver dam might be considered a phenotype of beaver genes, the same way beavers' powerful incisor teeth are ... who distinguished between germ plasm (gametes or their stem cells) and somatic cells (the body). ...
"High-tech dentistry - "St Elmo's frier" - Using a plasma torch to clean your teeth". The Economist print edition. 17 June 2009 ... "the way blood plasma carries red and white corpuscles and germs."[19] ...
Template:Tooth navs(edit talk links history). *Template:Toxicology navs(edit talk links history) ...
Odontogenic infection (an infection that originates within a tooth or in the closely surrounding tissues) ... Germ theory of disease[edit]. Main article: Germ theory of disease. East German postage stamps depicting four antique ...
"The Inspector's Teeth" (1950). *Rogue Queen (1951). *"Summer Wear" (1950). Collections. *The Continent Makers and Other Tales ...
In the nongilled mushrooms, the hymenium lines the inner surfaces of the tubes of boletes and polypores, or covers the teeth of ... termed the apical germ pore, from which the hypha emerges when the spore germinates.[12] ... such as the hedgehog mushroom and other tooth fungi, and so on. "Mushroom" has been used for polypores, puffballs, jelly fungi ...
In his writing he used this argument several times: no one doubts the wisdom of managing the germ plasm of agricultural stocks ... Can it be scientifically defined? Improvements in biological machinery… the limbs and teeth of grazing horses… the increase in ...
Male germ cells mutate at a much faster rate than female germ cells, and as the father ages, the DNA of the germ cells mutates ... because of its negative impact on bone mineralization and teeth mineralization. The "tetracycline teeth" have brown or grey ... This is because, as humans age, male germ cells acquire mutations at a much faster rate than female germ cells.[59][32][29] ... Cigarette smoke acts as a chemical mutagen on germ cell DNA. The germ cells suffer oxidative damage, and the effects can be ...
Predators including big cats, birds of prey, and ants share powerful jaws, sharp teeth, or claws which they use to seize and ... Grant, S. W. F.; Knoll, A. H.; Germs, G. J. B. (1991). "Probable Calcified Metaphytes in the Latest Proterozoic Nama Group, ... Skull of brown bear has large pointed canines for killing prey, and self-sharpening carnassial teeth at rear for cutting flesh ... These include speed, agility, stealth, sharp senses, claws, teeth, filters, and suitable digestive systems.[71] ...
Water fluoridation: in many areas fluoride is added to water with the goal of preventing tooth decay.[15] Fluoride is usually ... Although the germ theory of disease had not yet been developed, Snow's observations led him to discount the prevailing theory. ... Excessive levels can be toxic or cause undesirable cosmetic effects such as staining of teeth. Methods of reducing fluoride ... "germ-free." Two other investigators confirmed Traube's findings and published their papers in 1895.[40] Early attempts at ...
Regrowing teeth[edit]. In 2004, scientists at King's College London discovered a way to cultivate a complete tooth in mice[41] ... Richards M, Fong CY, Bongso A (December 2008). "Comparative evaluation of different in vitro systems that stimulate germ cell ... Researchers are confident that the tooth regeneration technology can be used to grow live teeth in people. ... Yen AH, Sharpe PT (January 2008). "Stem cells and tooth tissue engineering". Cell Tissue Res. 331 (1): 359-72. doi:10.1007/ ...
Kraut, Alan M. (1995). Silent travelers: germs, genes, and the "immigrant menace". JHU Press. ISBN 978-0-8018-5096-7.. ... They assessed the presence of DNA/RNA with polymerase chain reaction (PCR) techniques for Y. pestis from the tooth sockets in ...
Disturbances to the developing tooth germ during neonatal and early childhood stages such as maternal vitamin D deficiency, ... Tooth wear and ageing: Tooth wear is a progressive loss of enamel and dentine due to tooth erosion, abrasion and attrition. As ... The process of tooth whitening lightens the colour of a tooth.[1] Tooth whitening can be achieved by either changing the ... "Tooth Whitening". 8 Dec 2014.. *^ a b "Public Attitudes to Tooth Whitening Regulations (Presentation)" (PDF). General Dental ...
Its forehead is less sloping and the teeth are smaller. It is believed to be an ancestor of modern humans (with Homo ... They are also the simplest animals with organs that form from three germ layers.. ... Among these characters are tooth enamel, separation of pulmonary blood flow from body blood flow, arrangement of the skull ... The therapsids have temporal fenestrae larger and more mammal-like than pelycosaurs, their teeth show more serial ...
Multipotent stem cells have also been derived from germ cells found in human testicles.[48] ... and teeth (perivascular niche of dental pulp and periodontal ligament).[24] MSCs are attractive for clinical therapy due to ... recent years have suggested that adult stem cells might have the ability to differentiate into cell types from different germ ...
Water fluoridation is a practice that has been carried out since the early 20th century for the purpose of decreasing tooth ... Although the germ theory of disease had not yet been developed, Snow's observations led him to discount the prevailing theory. ... "germ-free." Two other investigators confirmed Traube's findings and published their papers in 1895.[68] Early attempts at ...
Red Cobra (Fangar, Dangor the Executioner), a bizarre mutant with protruding teeth, a peg leg and a gigantic forehead ... a germ so acidic and destructive that even the life of Giant Robo is in mortal danger. Can Johnny and Jerry save Giant Robo in ... Iron Power (Iron Jawbone): Appears in episode 14; powers include flight, sharp teeth and body separation. ...
Yen AH, Sharpe PT (January 2008). "Stem cells and tooth tissue engineering". Cell and Tissue Research. 331 (1): 359-72. doi: ... ESCs are pluripotent and give rise during development to all derivatives of the three primary germ layers: ectoderm, endoderm ... they are not able to differentiate into cells from all three germ layers. As such, they are deemed multipotent. ... cells derived from any of the three germ layers.[8] ...
"Pasteur's Papers on the Germ Theory". LSU Law Center's Medical and Public Health Law Site, Historic Public Health Articles. ... about Animals in the Scurf of the Teeth, the Substance Call'd Worms in the Nose, the Cuticula Consisting of Scales". ...
The mandibular stylet tips have small teeth, and through alternately moving these stylets back and forth, the insect cuts a ... "Study: Bedbugs May Carry MRSA; Germ Transmission Unclear , TIME.com". Healthland.time.com. Retrieved 11 November 2013 ...
Disturbances to the developing tooth germ during neonatal and early childhood stages such as maternal vitamin D deficiency, ... "Teeth Whitening". WebMD. Retrieved 2020-03-03.. *^ a b Greenwall, Linda (2017-04-11), "Tooth Sensitivity Associated with Tooth ... Tooth whitening or tooth bleaching is the process of lightning the color of human teeth.[1] Whitening is often desirable when ... Tooth wear and ageing: Tooth wear is a progressive loss of enamel and dentine due to tooth erosion, abrasion and attrition. As ...
Sa mga tao, ang mga istrakturang bestihiyal ay kinabibilangan ng appendix at wisdom teeth. Ang wisdom teeth ay wala ng silbi sa ... ito upang mapanitili nito ang isang matatag na organismo na sumusumporta naman sa isang maliit na bilang ng mga selulang germ ... Ang mga halimbawa ng istrukturang bestihiyal sa mga tao ang wisdom teeth,[115] ang coccyx,[111] ang vermiform appendix,[111] at ... "Mutant Chicken Grows Alligatorlike Teeth". Scientific American. http://www.sciam.com/article.cfm?id=mutant-chicken-grows-alli ...
GERMS IN TEETH. ,newspaper=[[The Mercury]] ,volume=LXXXIX, ,issue=11,937 ,location=Tasmania, Australia ,date=20 June 1908 , ... "GERMS IN TEETH." The Mercury (Hobart, Tas. : 1860 - 1954) 20 June 1908: 3. Web. 20 Jan 2018 ,http://nla.gov.au/nla.news- ... 1908 GERMS IN TEETH., The Mercury (Hobart, Tas. : 1860 - 1954), 20 June, p. 3. , viewed 20 Jan 2018, http://nla.gov.au/nla. ... GERMS IN TEETH. (1908, June 20). The Mercury (Hobart, Tas. : 1860 - 1954), p. 3. Retrieved January 20, 2018, from http://nla. ...
Expression survey of genes critical for tooth development in the human embryonic tooth germ. ... Expression survey of genes critical for tooth development in the human embryonic tooth germ. Dev. Dyn., 236: 1307-1312. doi: ... Msx1 is required for the induction of Patched by Sonic hedgehog in the mammalian tooth germ. Dev Dyn 215: 45-53.. Direct Link: ... Bone morphogenetic protein 4 is involved in cusp formation in molar tooth germ of mice. Eur J Oral Sci 110: 114-120.. Direct ...
Teeth Germ Scanner Prank is a simulator of scanning teeth germs for entertainment! Find out what type bacteria or germs live on ... teeth on phone screen! Play Teeth Bacteria Scanner Prank app direct your... ... About Teeth Germ Scanner Simulator. Teeth Germ Scanner Prank is a simulator of scanning teeth germs for entertainment! Find out ... This app is intended for entertainment purposes only and does not provide true Teeth Germs. Check if theres germs in your ...
This method allows unique access to the tooth ... ... Here we detail a method to culture tooth germs in mandible ... The tooth germ appears very robust and such half tooth germs are able to develop well in culture, as previously shown in halved ... In some slices a whole tooth germ will be found within a slice, while in others the chopper may cut the tooth germ through the ... Arrows point to molar tooth germs. (E) High power view of a molar slice. The tooth germ epithelium is outlined with black spots ...
... tooth germ explanation free. What is tooth germ? Meaning of tooth germ medical term. What does tooth germ mean? ... Looking for online definition of tooth germ in the Medical Dictionary? ... Tooth germ , definition of tooth germ by Medical dictionary https://medical-dictionary.thefreedictionary.com/tooth+germ ... Related to tooth germ: bell stage, Hertwigs epithelial root sheath, tooth buds tooth bud. the primordial structures from which ...
Possible involvement of melatonin in tooth development: expression of melatonin 1a receptor in human and mouse tooth germs. ... play a physiological role in tooth development/growth by regulating the cellular function of odontogenic cells in tooth germs. ... Thesleff I, Mikkola M (2002) The role of growth factors in tooth development. Int Rev Cytol 217:93-135CrossRefPubMedGoogle ... Jernvall J, Thesleff I (2000) Reiterative signaling and patterning in mammalian tooth morphogenesis. Mech Dev 92:19-29CrossRef ...
Expression and localization of CRAMP in rat tooth germ and during reparative dentin formation. ... the role of these peptides in teeth is unknown. Therefore, we investigated the role of CRAMP and FPR2 in tooth development, ... Antimicrobial peptide Tooth development Cavity preparation Odontoblast Reparative dentin This is a preview of subscription ... In mature teeth, CRAMP was not detected, but FPR2 continued to be localized in the sub-odontoblastic layer. After cavity ...
... during tooth morphogenesis of the mouse lower first molar. The distribution of cells positive for caspase-3 closely ... of tooth germ to the completion of tooth crown morphology (E19) also suggests that apoptotic events are related not only to a ... Localization of activated caspase-3-positive and apoptotic cells in the developing tooth germ of the mouse lower first molar ... positive apoptotic cells through the developmental course of tooth germs from embryo day 12 (E12) to E19, thus showing that the ...
نحن هنا بالتفصيل طريقة للجراثيم الأسنان الثقافة في شرائح الفك السفلي باستخدام المروحية...
The objective was to determine the effect of fetal tooth germ growth and development disturbance due to diabetic hyperglycemia ... Rat offspring right maxilla was taken and decalcified to observe tooth germ growth and development. Each tissue samples in ... Therefore, seems different of IGF-1 expression in inner enamel epithelium tooth germ between two groups. Rat offspring who born ... EFFECT OF HYPERGLICEMIA DURING PREGNANCY TO FETAL TOOTH GERM GROWTH AND DEVELOPMENT. ...
1 thought on "Scientists Rebuild Genetic Code Of Black Death Germ By Extracting DNA Fragments From Teeth Of Medieval Corpses ... Scientists Rebuild Genetic Code Of Black Death Germ By Extracting DNA Fragments From Teeth Of Medieval Corpses Found Under ... Tooth power. Globally the infection still kills 2,000 people a year. But it presents much less of a threat now than in the 14th ... "So what I did was I opened the tooth and opened the pulp chamber and with a drill bit made one pass through and I took out only ...
Clipart of a 3d Magnifying Glass Discovering Germs or Bacteria on a Tooth and Gums - Royalty Free Vector Illustration by ... Royalty free clip art illustration of a 3d magnifying glass discovering germs or bacteria on a tooth and gums.. This royalty- ... Royalty free clip art illustration of a 3d magnifying glass discovering germs or bacteria on a tooth and gums by ... Clipart of a 3d Magnifying Glass Discovering Germs or Bacteria on a Tooth and Gums - Royalty Free Vector Illustration by ...
... mouse and rat molar tooth germs. Hence, we propose a new concept that the eternal tooth bud producing various dental progeny is ... This type of tooth had a special epithelial structure for the maintenance of stem cells, showing the bulbous epithelial ... transverse sections of the apical end toward the incisal direction is likely to reflect the development of the tooth germ in ... Furthermore, BrdU labelling analysis suggested that the guinea-pig molars, which were continuously growing teeth, also ...
... of mouse first molar during tooth germ development and explored the relation between these growth factors and the tooth germ- ... tooth germ / morphogenesis / cytodifferentiation / basement membrane / type IV collagen / growth factor / TGF-β / FGF / 上皮間葉相互作 ... The Analysis of Gene Expression of Morphogenetic Factors Implicated Development of Tooth Germ and Odontogenic Tumors. Research ... FGF-2 and TGF-β1 may play an important role in early tooth morphogenesis and cytodifferentiation in cooperation with the ...
Homeobox protein MSX-1 (hereafter referred to as MSX-1) is essential for early tooth-germ development. Tooth-germ development ... Results Perceived causes of tooth decay included tooth germs/worms (23.9%) and sugar (5.1%), and 32.0%, 15... ... It occurs at the stage of tooth formation, which determines the shape and size of the tooth crown, when one or more teeth fuse ... during tooth development and mineralization, we determined their spatiotemporal expression in murine tooth germs from embryonic ...
TOOTH GERM / IN SITU HYBRIDIZATION / RT-PCR / T-T DIMER. Research Abstract. We isolated cDNAs from excised tooth germs and ... The specificity of the cDNAs were confirmed by in situ hybridization applied to tooth germs of mouse embryo (E14-17) by using ... The eluted PCR products of tooth germ-spcecific cDNAs from acrylamide gels were thymine-thymine (T-T) dimerized by ultra violet ... Isolation and identification of cDNAs related with mouse tooth germs and its localization on human odontogenic tumor.. Research ...
If you can not get the tooth to remain in the socket for the journey to the dentist or emergency space, rinse it off to get rid ... I broke my back tooth final year and had to go to the dentist to have it taken out. Toothache can either intense or tolerated ... Posted in: emergency dentist Filed under: tooth Post navigation. ← Dangers Of Vitamins And Supplements ... Once you have a tooth that is so broken that it requirements extra support (your dentist will advise you when this happens), ...
Tooth Germ: (noun) A primitive cell in the embryo that is the precursor to a tooth. ... The caries in this tooth extends into the pulp cavity and has lead to pulpal necrosis. Options for this tooth will be more ... See the GDCs guidelines for more information on tooth whitening.. I hope that this helps in your preparation for the ... Tooth whitening. A recent change in EU legislation in 2012 has confused and baffled the profession.. What concentration of the ...
Tooth Germ: (noun) A primitive cell in the embryo that is the precursor to a tooth. ... XLA non-restorable teeth before being placed on meds if possible. *Stopping the meds is not useful, if MRONJ develops maintain ... Alveolar bone is perforated by teeth which are loaded when in function which can lead to micro-fractures, this fact on top of ... Minimise risk of MRONJ i.e. excellent OH, restore teeth rather than XLA if possible, adjust flanges of dentures so they are not ...
How many germs are on your toothbrush? See how to store and keep your toothbrush clean from the millions of bacteria that can ... How Brushing Your Teeth Hurts. Brushing your teeth, particularly with an electric toothbrush, can actually push germs under ... Most of these germs already exist in your mouth so you probably wont get sick from them. However, if others use your ... While some of these products do kill some germs, there is no evidence using them will reduce your risk of illness. ...
"Silver Salve" Kills Germs; No Harm to Tissues By Science News * Cat-Fight 50,000,000 Years Ago Left Sabre-Tooth Scar ...
... we really dont give all that much thought to our teeth, beyond the mechanical ritual of brushing and hopef ... 5 Germ Encrusted Toothbrush. Youve probably heard the story about toothbrushes and toilets. The theory goes that even if it is ... In many parts of the world, when a child loses a tooth, the Tooth Fairy comes to collect it and leaves money in its place. ... 7 Synthetically Grown Teeth Researchers in China have been trying to grow synthetic teeth using stem cells, but as getting a ...
These results imply that there are time and site specificity, which may be involved in tooth morphogenesis and the tooth germ ... These results imply that there are time and site specificity, which may be involved in tooth morphogenesis and the tooth germ ... These results imply that there are time and site specificity, which may be involved in tooth morphogenesis and the tooth germ ... These results imply that there are time and site specificity, which may be involved in tooth morphogenesis and the tooth germ ...
Does the cold make you catch a cold? The truth on 7 common beliefs about germs ... Sports drinks hurt kids teeth Updated: May 14, 2012 - 1:20 PM EDT * ... Jain and her team swished samples of human tooth enamel in 13 different drinks for 15 minutes four times a day, then stored the ... When this hard stuff gets scuffed-up, the inner structure of their teeth loses protection. Eating hot, cold or sweet foods or ...
Tooth-Decay Germs Tied to Bowel Cancer Times of India. 19 October 2011. A type of bacteria that cause dental decay and skin ...
Tips for Keeping Your Toothbrush Germ-Free. This video is unavailable because we were unable to load a message from our ... Kind Principal Writes Letter of Verification to Tooth Fairy After Student Loses Lost Tooth. Offbeat 7:47 AM PDT, October 17, ... Kind Principal Writes Letter of Verification to Tooth Fairy After Student Loses Lost Tooth Offbeat ... wrote a letter to the Tooth Fairy explaining that a student at the school misplaced their newly lost tooth while playing at ...
Germs down the generations. Science News. DNA reveals origins of farming in Britain. ... Karen - No, its not tooth rot. Its actually dental plaque. If you dont clean your teeth, you get a sort of sticky film and ... Graihagh - And when you say calculus, you mean tooth decay, tooth rot. ... One clue, however, may lie in the plaque on the teeth of ancient skeletons. Graihagh Jackson talked to Karen Hardy of the ...
Looking after your teeth, gums and mouth *Keeping your toothbrush safe from germs *Tooth-friendly foods and drinks *Did you ... deciduous teeth; permanent teeth; tooth decay; toothbrush; floss; tooth; teeth; baby teeth; lost tooth; milk teeth; decay; ... People do not grow new teeth if they loose a tooth once their adult teeth replace their baby teeth, so take good care of the ... My teeth I went to the dentist one day,. He said that I had some decay.. My tooth was real sore,. I brushed my teeth more. And ...
Tooth Germ When the crown is complete, the growing roots push the tooth toward the mouth cavity. Overlying bone is resorbed so ... fleshy tissue between tooth and tooth socket that holds the tooth in place, attaches it to the adjacent teeth, ... ... Tooth (anatomy) In humans the primary dentition consists of 20 teeth four incisors, two canines, and four molars in each jaw. ... The teeth have thick enamel, like the teeth of all later hominins but unlike those of Ar. ramidus, which have apelike ... ...
... mouths are too small to fit four extra teeth. ... Wisdom teeth, which are also called third molars, generally ... University of Oregon Health Center: Extraction of Impacted Wisdom Teeth * Consumer Guide to Dentistry: Tooth Extraction: What ... This can cause crowding, pain, infection and swelling, leading most dentists to extract wisdom teeth. Wisdom tooth extraction ... Wisdom teeth, which are also called third molars, generally grow in at the very back of your mouth when you are between the ...
  • Find out what type bacteria or germs live on teeth on phone screen! (androidblip.com)
  • Play Teeth Bacteria Scanner Prank app direct your camera towards your mouth, show your fake random teeth Bacteria to your friends. (androidblip.com)
  • Check if there's germs in your mouth with Teeth Bacteria Scanner Prank Simulator! (androidblip.com)
  • Try yourself Teeth Bacteria Scanner Prank! (androidblip.com)
  • Teeth Bacteria Scanner Prank app will show fake simulated Bacteria for entertain your kids. (androidblip.com)
  • use Bacteria Scanner Simulator app and play with kids by find germs using your mobile device. (androidblip.com)
  • Enjoy this Teeth Bacteria Scanner Simulator app. (androidblip.com)
  • NOTE: Teeth Bacteria Scanner Prank is a Simulator! (androidblip.com)
  • Royalty free clip art illustration of a 3d magnifying glass discovering germs or bacteria on a tooth and gums by AtStockIllustration , COLLC0021. (clipartof.com)
  • Even plaque - the stuff you are trying to brush off your teeth - is a type of bacteria. (medicinenet.com)
  • This is because germs (bacteria (say bak-tee-ria)) in your mouth grow on your teeth and around the gums every day. (cyh.com)
  • In this witty, easy-to-read story, children learn what bacteria is, how it causes tooth decay, and how they can fight against it. (powells.com)
  • Told from the point of view of the bacteria, the fact-filled, rhyming text shows dentists, in a non-threatening way, as they help youngsters guard against tooth decay. (powells.com)
  • High resolution royalty free illustrated vector graphic of a 3d magnifying glass discovering germs or bacteria on a tooth. (atstockillustration.com)
  • Dog owners and their pets may exchange harmful mouth bacteria that can cause gum disease and tooth decay in both humans and canines, according to a report in Archives of Oral Biology. (wsj.com)
  • S. mutans , among other bacteria, produce acids from sugar that is consumed, and these dissolve the hard enamel coating on teeth. (medicalnewstoday.com)
  • 30135396 - Bacteria attacking the teeth Character set flat design illustration. (123rf.com)
  • Growing evidence links gum disease to dementia and researchers say tooth germs and bacteria fuel rogue proteins in the brain. (express.co.uk)
  • Gum disease, which affects up to seven in 10 adults, is caused by inflammation when pockets between the teeth harbour bacteria. (express.co.uk)
  • Results Perceived causes of tooth decay included tooth germs/worms (23.9%) and sugar (5.1%), and 32.0%, 15. (readbyqxmd.com)
  • The trial aims to explore the clinical and cost effectiveness of fillings in children's teeth, comparing 3 different ways of managing childhood caries: conventional fillings, prevention alone and biological methods of managing decay e.g. (atoothgerm.co.uk)
  • Graihagh - And when you say calculus, you mean tooth decay, tooth rot. (thenakedscientists.com)
  • If you keep your teeth clean and healthy every day you will avoid problems like tooth decay, toothache, bleeding gums, yellow teeth and bad breath. (cyh.com)
  • These can cause tooth decay. (cyh.com)
  • Most sodas also contain large amounts of sugar with can lead to tooth decay, and sodium, which is very drying to tissues inside of your mouth. (livestrong.com)
  • Veillonella is in the family of oral flora responsible for periodontal (gum) disease and tooth decay that affects so many people. (colgate.com)
  • A good way to prevent tooth decay is to keep an eye on the amount of sugar in your diet. (colgate.com)
  • Visit Colgate.com to learn about tooth plaque and all the techniques and products that will help you prevent plaque from causing tooth decay. (colgate.com)
  • that teaches children about tooth decay. (powells.com)
  • About 5% of canines get dental caries, which includes tooth decay. (wsj.com)
  • She said the $100 was for "protection" - from tooth decay we assumed. (slashdot.org)
  • Exposure to secondhand smoke at 4 months of age is associated with an increased risk of tooth decay at age 3 years, concludes a study published in The BMJ today. (medicalnewstoday.com)
  • 46560596 - Dental caries, tooth decay, health problem. (123rf.com)
  • 11573362 - Progressive Stages Of Tooth Decay, illustration of open female. (123rf.com)
  • Dry mouth also makes you more likely to develop rapid tooth decay and gum (periodontal) disease. (webmd.com)
  • According to clinical trials, topical fluoride treatment in the form of gel or varnish is effective in preventing tooth decay in children with enamel defects. (wikipedia.org)
  • In decayed teeth with enamel defects, only bonded restorations (e.g. glass ionomer, polyacid-modified composite resin and not amalgam) should be placed and cavity margins should not be placed in areas of defective enamel as this may lead to marginal leakage and recurrent decay. (wikipedia.org)
  • Brushing your teeth, particularly with an electric toothbrush, can actually push germs under your gums, says R. Thomas Glass, DDS, PhD, professor of dentistry and pathology at Oklahoma State University Center for Health Sciences. (medicinenet.com)
  • Keeping your teeth, gums and mouth clean and healthy can prevent disease and infection, and can help to avoid pain and sickness. (cyh.com)
  • Acids or poisons are made in the plaque and these attack the teeth and gums and cause disease. (cyh.com)
  • Hard and medium bristled toothbrushes can damage teeth and gums. (cyh.com)
  • Gently and thoroughly brush each side of every tooth and the gums. (cyh.com)
  • Wisdom teeth that have already erupted through your gums are pulled out with dental pliers, while extracting them before they erupt may involve cutting open your gum tissue to free the tooth. (livestrong.com)
  • Are your teeth and gums in good condition? (colgate.com)
  • Tartar control is an important part of keeping your teeth and gums healthy. (colgate.com)
  • Use with Crest Pro-Health Toothpaste to promote healthy teeth and gums. (safeway.com)
  • Black flecks stained his lips, curled back from canted teeth and blistered gums. (barnesandnoble.com)
  • Pour 20 ml (4 x 5 ml teaspoonfuls) into a glass, rinse around teeth and gums for 30 seconds, then spit out. (superdrug.com)
  • Dental trauma refers to trauma (injury) to the teeth and/or periodontium (gums, periodontal ligament , alveolar bone ), and nearby soft tissues such as the lips, tongue, etc. (wikipedia.org)
  • Many assume that brushing our teeth twice daily is enough to ward off the germs and bad breath but mouthwash is essential and has an important part to play in maintaining clean and healthy gums, teeth, and breathe. (hubpages.com)
  • Making homemade mouthwash may sound strange and difficult but it is really cheap, quick, easy and tons better for your gums, teeth and breathe. (hubpages.com)
  • When left alone, plaque on teeth turns to tartar and can increase your risk for cavities or gum disease. (colgate.com)
  • As the game start, brush the teeth, wash it using shower, remove cavities, horrible germs, dark spot like black dot and Blood dots. (getjar.com)
  • 14730974 - Tooth cavity close up and cavities symbol showing a magnifying. (123rf.com)
  • The Fluoride Formula Helps Prevent Cavities, Restores Enamel, And Strengthens Your Teeth, Making Them 50 Percent Stronger Than Just Brushing Alone. (riteaid.com)
  • Then once they start eating Western diets, their teeth get all jacked up and they start getting cavities. (sott.net)
  • Kills millions of germs to fight bad breath, plaque, and gingivitis while leaving your mouth feeling clean, invigorated and fresh. (safeway.com)
  • Kills germs that cause bad breath. (safeway.com)
  • According to Kids Health, not brushing your teeth can cause halitosis, a medical condition that means, simply, bad breath. (ehow.co.uk)
  • Brushing your teeth twice a day can combat bad breath. (ehow.co.uk)
  • The formula kills up to 97% of plaque and bad breath causing germs left behind after brushing. (superdrug.com)
  • It Freshens Breath, Kills Germs That Cause Bad Breath, And Cleans Your Whole Mouth. (riteaid.com)
  • Tooth morphogenesis and cytodifferentiations are regulated by epithelium-mesenchymal interactions, and the basement membrane plays a role in mediating these interactions Type IV collagen, the major component of the dental basement membrane, is composed of three αchains. (nii.ac.jp)
  • Using indirect immunofluorescence on cryosections, we characterized the changes in protein localization of alpha 1 to 6 chains of type IV collagen during molar development in mice molar and human tooth germ. (elsevier.com)
  • Both mice and human tooth germ, we detected conversions in localization and composition of type IV collagen alpha chains working with tooth germ development. (elsevier.com)
  • These results imply that there are time and site specificity, which may be involved in tooth morphogenesis and the tooth germ development, in type IV collagen alpha chains. (elsevier.com)
  • This study examined the immunohistochemical detection of activated caspase-3, and its association with apoptosis, during tooth morphogenesis of the mouse lower first molar. (nih.gov)
  • The specific distribution pattern of apoptotic cells in the developing odontogenic epithelial tissue from the initiation (E12) of tooth germ to the completion of tooth crown morphology (E19) also suggests that apoptotic events are related not only to a deletion of functionally suspended cells, but also participate in initiation and the completion of tooth morphogenesis. (nih.gov)
  • Therefore, it is thought that these forms is related to morphogenesis and cytodifferentiation characteristic of tooth development that regulated y epithelial-mesenchymal interactions. (nii.ac.jp)
  • FGF-2 and TGF-β1 may play an important role in early tooth morphogenesis and cytodifferentiation in cooperation with the molecular form, α3(IV)α4(IV)α5(IV), which exsists in the early stage of tooth development. (nii.ac.jp)
  • These findings suggest that Dpysl4 plays essential roles in tooth germ morphogenesis through the regulation of dental epithelial cell proliferation, cell polarization and differentiation. (ijbs.com)
  • Tooth germ morphogenesis begins with a thickening of the epithelium to form the dental epithelium during the lamina and placode stages [ 2 ]. (ijbs.com)
  • These cells condense and form a kind of embryonic tooth germ. (tu-berlin.de)
  • As a result of this condensation, the embryonic tooth germ begins to interact with surrounding cell layers in the jaw via specific messengers. (tu-berlin.de)
  • The approach adopted by researchers at TU Berlin for the natural growth of third teeth is as simple as it is ingenious: They remove dental pulp cells from the interior of an extracted tooth, which they then cultivate and de-differentiate in such a way as to produce an active embryonic tooth germ. (tu-berlin.de)
  • If you were to implant this embryonic tooth germ into a patient, the idea goes, it would begin to communicate with the surrounding tissue, thus releasing the entire cascade of messengers and initiating the process of tooth development. (tu-berlin.de)
  • The researchers have developed a special cultivation method to allow the adult cells in these wisdom teeth to de-differentiate back into a type of embryonic state and finally form an embryonic tooth germ. (tu-berlin.de)
  • At The Forsyth Institute (Boston, MA), Pamela Yelick and colleagues have seeded cultured rat tooth germ cells on biodegradable scaffolds which were then implanted to bioengineer tooth tissues, while in London (UK), Paul Sharpe's group has been able to generate mouse tooth structures from non-dental mesenchymal stem cells placed in contact with embryonic oral epithelium. (thefreedictionary.com)
  • Therefore, seems different of IGF-1 expression in inner enamel epithelium tooth germ between two groups. (alliedacademies.org)
  • Observations on continuously growing roots of the sloth and the K14-Eda transgenic mice indicate that epithelial stem cells can give rise to both the ameloblast and root epithelium cell lineage creating distinct tooth patterns. (semanticscholar.org)
  • Undifferentiated odontogenic epithelium and dental papilla cells differentiate into ameloblasts and odontoblasts, respectively, both of which are essential for tooth development. (readbyqxmd.com)
  • We found that upon surgical removal of dental epithelium CCN2 was not longer expressed in dental mesenchyme in cultured bud stage germs. (elsevier.com)
  • The development of the tooth will be followed, looking at what controls the shape of the tooth and how signals from the mesenchyme and epithelium interact to lead to formation of a molar or incisor. (wiley.com)
  • Before E12.0 the instructive information for initiation of a tooth resides in the epithelium, but at E12.0 the mesenchyme that starts to condense around the forming bud takes over this instructive role. (wiley.com)
  • If you can not get the tooth to remain in the socket for the journey to the dentist or emergency space, rinse it off to get rid of any visible dirt and preserve it in a container of milk or your saliva until a skilled can see you. (dentist-in-greece.com)
  • Adults and children 12 years of age and older: use twice daily after brushing your teeth with a toothpaste vigorously swish 10 mL (2 teaspoonfuls) of rinse between your teeth for 1 minute and then spit out. (riteaid.com)
  • This type of tooth had a special epithelial structure for the maintenance of stem cells, showing the bulbous epithelial protrusion at the apical end. (semanticscholar.org)
  • The development of ectodermal organs such as the tooth germ and hair follicles is a complex process that involves reciprocal epithelial and mesenchymal interactions [ 1 - 3 ]. (ijbs.com)
  • In the bell stage of the tooth germ, epithelial and mesenchymal cells undergo stepwise histodifferentiation into enamel-secreting ameloblasts and dentin-secreting odontoblast cell lineages, respectively [ 2 ]. (ijbs.com)
  • The continued importance of epithelial-mesenchymal interactions at these later stages of tooth development will also be discussed. (wiley.com)
  • Tooth development progresses through a series of well-defined stages - epithelial thickening, bud, cap and bell ( Fig. 1 ). (wiley.com)
  • It arises from the mesenchymal portion of the tooth germ. (readbyqxmd.com)
  • Under natural conditions, hair, teeth, and even nails grow as a result of what is termed mesenchymal condensation. (tu-berlin.de)
  • Most of these germs already exist in your mouth so you probably won't get sick from them. (medicinenet.com)
  • Finish a meal with a drink of tap water - this washes your teeth and mouth. (cyh.com)
  • When the crown is complete, the growing roots push the tooth toward the mouth cavity. (britannica.com)
  • Wisdom teeth, which are also called third molars, generally grow in at the very back of your mouth when you are between the ages of 15 and 25. (livestrong.com)
  • Avoid brushing your teeth or rinsing your mouth out for at least 24 hours after the extraction, and avoid very hot or cold drinks-including sodas--and solid foods. (livestrong.com)
  • Mouth breathing is abnormal & can lead to various major issues in teeth and jaws. (toothtown.in)
  • During mouth breathing, Tongue rests in a lower position leading to narrow jaw, crooked teeth, underdeveloped facial growth. (toothtown.in)
  • Appliances like Oral screen and Myobraces can be used to correct mouth breathing and also guide proper Jaw and teeth growth. (toothtown.in)
  • So, in theory, if a person were to cover their mouth when they cough or sneeze, the risk of being exposed to their germs should be rather low. (thehour.com)
  • 48171369 - Funny cartoon vector teeth set, mouth hygiene icons set, isolated. (123rf.com)
  • 15424187 - Dental mirror inside patient open mouth teeth reflection medical. (123rf.com)
  • Your tongue also gets help from your teeth, lips, and mouth. (kidshealth.org)
  • Your teeth help your tongue grind food as the tongue mixes the food around your mouth. (kidshealth.org)
  • And without your teeth, lips, and the roof of your mouth, your tongue wouldn't be able to form sounds to make words. (kidshealth.org)
  • The salivary glands sit inside each cheek, at the bottom of your mouth, and near your front teeth by the jaw bone. (webmd.com)
  • What Are the Effects of Thumb Sucking on the Teeth and Mouth? (healthline.com)
  • Not all thumb sucking results in damage to the teeth or mouth. (healthline.com)
  • Persistent, vigorous thumb sucking can sometimes cause misalignment of your child's permanent teeth and affect the jaw or the shape and roof of the mouth. (healthline.com)
  • Vigorous thumb sucking can have many effects on the teeth and mouth. (healthline.com)
  • That's because of the repetitive pressure the thumb and sucking places on the teeth, jawbone, and roof of the mouth. (healthline.com)
  • Consistent or vigorous thumb sucking that lasts past that time may affect the alignment of your child's permanent front teeth and the shape of their mouth. (healthline.com)
  • [1] X Research source These devices correct the position of teeth, improve your smile's appearance, keep your mouth healthy and improve speech - so wearing them is well worth it. (wikihow.com)
  • Remember that you have several sides to your teeth - outer (near your cheek or lip), inner (facing your tongue), crown (on the bottom teeth, it's the part of the tooth facing the top of your mouth and on the top teeth, it's the part facing your tongue). (wikihow.com)
  • So today we are going to be talking about oral hygiene - minding your mouth and natural ways to keep your teeth clean, or I guess to keep them at all. (sott.net)
  • I had my wisdom teeth out at one point but other than that I'm pretty cool in my mouth. (sott.net)
  • The RNA sequencing (RNA-seq) was performed to explore the altered transcriptome of BMMSCs undergoing odontogenic differentiation induced by tooth germ cell-condition medium (TGC-CM). Pathway analysis was conducted to explore enriched pathways of the differential expression signature. (springer.com)
  • Within the tooth bud created by this process, a differentiation of various cell types occurs: the enamel organ, the dental papilla, and the dental lamina. (tu-berlin.de)
  • Here we detail a method to culture tooth germs in mandible slices using a tissue chopper. (jove.com)
  • The distribution of cells positive for caspase-3 closely corresponded with the localization of the terminal deoxynucleotidyl transferase-mediated deoxyuridine-5'-triphosphate-biotin nick end labelling (TUNEL)-positive apoptotic cells through the developmental course of tooth germs from embryo day 12 (E12) to E19, thus showing that the apoptosis occurring in the developing odontogenic tissue was induced by the activation of the caspase family. (nih.gov)
  • We isolated cDNAs from excised tooth germs and giniva of mouse embryo (E13-E17) and compared expression of cDNAs of each tissue by using RT-PCR and differential display. (nii.ac.jp)
  • Toothache can either intense or tolerated but unbearable for dental discomfort become it is important that patients immediately seek the advice of their physicians as this might be covered by a dental emergency.Delay treatment could lead to loss or progressive gum tissue harm to teeth. (dentist-in-greece.com)
  • Dentin, also spelled dentine, in anatomy, the yellowish tissue that makes up the bulk of all teeth. (britannica.com)
  • they will take out a tooth that is about to fall, and reconnect it firmly to the regenerated tissue. (slashdot.org)
  • Lingual is a medical word that means having to do with the tongue, and tonsils are small masses of tissue that contain cells that help filter out harmful germs that could cause an infection in the body. (kidshealth.org)
  • The information determining which kind of tooth is required - incisor or molar - is provided by the surrounding jaw tissue. (tu-berlin.de)
  • The layers of tissue that make up the tooth are clearly visible, with the pink pulp standing out against the paler dentine and tooth enamel . (wikipedia.org)
  • Trauma injuries involving the alveolus can be complicated as it does not happen in isolation, very often presents along with other types of tooth tissue injuries. (wikipedia.org)
  • Reposition displaced teeth under local anaesthetic and stabilise the mobile segment with a splint for 4 weeks, suture any soft tissue lacerations. (wikipedia.org)
  • Tissue interactions in embryonic mouse tooth germs. (nii.ac.jp)
  • Cells differentiate along various germ lines, essentially recapitulating any tissue of the body. (medscape.com)
  • One clue, however, may lie in the plaque on the teeth of ancient skeletons. (thenakedscientists.com)
  • Plaque disclosing tablets can help you see where the plaque is plaguing your teeth and help you do your best to get rid of it. (colgate.com)
  • Learn more about the causes of plaque & tartar and see find out how to removal it from your teeth. (colgate.com)
  • The damage that dental plaque germs cause can be permanent. (colgate.com)
  • Don't forget to remove the plaque along the part of your tooth closest to the gum line. (wikihow.com)
  • We observed the expression patterns of several growth factors (TGF-β, BMPs and FGFs) in the basement menbrane of mouse first molar during tooth germ development and explored the relation between these growth factors and the tooth germ-specific molecular forms of type IV collage. (nii.ac.jp)
  • These results strongly suggest that melatonin may play a physiological role in tooth development/growth by regulating the cellular function of odontogenic cells in tooth germs. (springer.com)
  • Isolation and identification of cDNAs related with mouse tooth germs and its localization on human odontogenic tumor. (nii.ac.jp)
  • To stay safe from germs at work , school, home, or out in the community, you may need to try more creative tactics for keeping your own hands away from your face. (lovetoknow.com)
  • However, he did have a very frightening set of dentures made of various metals and human and animal teeth, and he serves as a warning to any who don't take care of their chompers. (listverse.com)
  • If we lose our adult teeth, we need implants or dentures to be able to bite effectively. (tu-berlin.de)
  • Hey1 and Hey2 are differently expressed during mouse tooth development. (readbyqxmd.com)
  • Here we first determined the expression patterns of CCN genes in mouse tooth germs. (elsevier.com)
  • A reduction in Dpysl4 gene expression in the tooth germ produced a loss of ameloblasts, resulting in the decrease of synthesis and secretion of enamel. (ijbs.com)
  • In view of this, the purpose of this study was to analyze the collagen , the major organic component of dental pulp ECM, in papillae of human tooth germs in different developmental phases. (bvsalud.org)
  • CCN proteins are extracellular and cell-associated molecules involved in several developmental processes, but their expression patterns and regulation in tooth development remain unclear. (elsevier.com)
  • Knowledge of chronological development of deciduous and permanent teeth makes it possible to determine the approximate time at which the developmental disturbance occurred. (wikipedia.org)
  • Developmental defects in enamel that affect tooth appearance in the esthetic zone (i.e. upper front teeth) may cause individuals to experience social embarrassment or anxiety regarding the appearance of their teeth. (wikipedia.org)
  • During the past 2 years, the new pilots have been running throughout the country, emphasising the 'traffic-lighting' risk assessment of patients for the 4 domains of oral health: caries, periodontal disease, tooth wear and oral cancer. (atoothgerm.co.uk)
  • Dental stem cells are isolated and characterized as follows: dental pulp stem cells (DPSCs) from pulp of permanent teeth, immature dental stem cells from primary teeth, periodontal ligament stem cells (PDLSCs), and stem cells from apical papilla (SCAP), etc. (springer.com)
  • Gingivae bleeding especially around the margins may suggest injury to the periodontal ligament of the tooth. (wikipedia.org)
  • a primitive cell in the embryo that is the precursor of a tooth. (thefreedictionary.com)
  • The specificity of the cDNAs were confirmed by in situ hybridization applied to tooth germs of mouse embryo (E14-17) by using the each T-T dimerized cDNA probe. (nii.ac.jp)
  • A primitive cell in the embryo that is the precursor to a tooth. (atoothgerm.co.uk)
  • This method allows unique access to the tooth during development, providing excellent opportunity for manipulation and lineage tracing, not available using more traditional culture methods. (jove.com)
  • Before mineralization, severe damage such as mechanical trauma to the tooth germ as well as multiagent chemotherapy and radiation therapy may arrest the development, leading to absence of a tooth. (thefreedictionary.com)
  • However, little is known about the effects of melatonin on tooth development and growth, which thus remain to be elucidated. (springer.com)
  • This study was performed to examine the possibility that melatonin might exert its influence on tooth development as well as skeletal growth. (springer.com)
  • Therefore, we investigated the role of CRAMP and FPR2 in tooth development, reparative dentin formation, and defense response. (springer.com)
  • First, we examined the localization of CRAMP and FPR2 during tooth development by immunohistochemical analysis. (springer.com)
  • At the late bell stage in tooth development, CRAMP was detected in odontoblasts, and FPR2 was observed in the sub-odontoblastic layer. (springer.com)
  • The objective was to determine the effect of fetal tooth germ growth and development disturbance due to diabetic hyperglycemia during pregnancy. (alliedacademies.org)
  • Rat offspring right maxilla was taken and decalcified to observe tooth germ growth and development. (alliedacademies.org)
  • Rat offspring who born from diabetic mother showed lower body weight which is statistically significant, histologically delayed of enamel matrix formation, delayed of tooth development stages, and reduced in tooth size compared to control group. (alliedacademies.org)
  • Rat offspring who born from diabetic mother suggested had tooth germ growth and development disturbance. (alliedacademies.org)
  • To determine the expression and possible function of CIC-5 during the rat tooth germ development. (bvsalud.org)
  • Isolated total mRNA and protein from the rat tooth germs which were at different stages of development. (bvsalud.org)
  • These results showed the spatial temporal distribution of expression of CIC-5 during the different stages of the rat tooth germ development and suggested that it might contribute to the rat tooth germ development. (bvsalud.org)
  • In recent years the focus for studies on tooth development has been the mouse, with a wealth of genetic information accrued and the availability of cutting edge techniques. (wiley.com)
  • Tooth anomalies and human disorders have been well covered by recent reviews, therefore in this paper we wish to present a classical review of current knowledge of tooth development, fitting together data from a large number of recent research papers to draw general conclusions about tooth development. (wiley.com)
  • The mouse can therefore tell us much about patterning of teeth (molar vs. incisor), control of tooth number, and the role of stem cells in tooth development. (wiley.com)
  • These tissues continue to differentiate until a complete tooth is formed," says Rosowski, describing the process of tooth development. (tu-berlin.de)
  • Trauma to primary teeth occurs most commonly at the age of 2 to 3 years, during the development of motor coordination. (wikipedia.org)
  • Enamel hypoplasia is a defect of the teeth in which the enamel is deficient in quantity, caused by defective enamel matrix formation during enamel development, as a result of inherited and acquired systemic condition(s). (wikipedia.org)
  • The severity and localization of disease presentation is dependent on the timing and stage of tooth development in which the defective enamel formation occurred. (wikipedia.org)
  • Although not completely understood, the function of ameloblastins is believed to be in controlling the elongation of enamel crystals and generally directing enamel mineralization during tooth development. (wikipedia.org)
  • More Complete Than Any Other Mouthwash, Listerine Total Care Plus Whitening Provides The Same Six Benefits In One As Listerine Total Care Anticavity Mouthwash, Plus It Visibly Whitens Teeth. (riteaid.com)
  • The enamel organ and dental papilla, constituting the developing tooth. (thefreedictionary.com)
  • Primordial structures from which a tooth is formed: enamel organ, dental papilla, and dental sac enclosing them. (thefreedictionary.com)
  • If you actually crack open an ancient tooth you see this dark black powdery material and that's very likely to be dried up blood and other biological tissues. (infiniteunknown.net)
  • In addition, good healing of soft tissues and correct eruption of the teeth #42, #43 and #44 were observed. (bvsalud.org)
  • When oral surgery is performed on an emergency patient who suffers from discomfort due to a wisdom tooth, the patient is normally anesthetized. (dentist-in-greece.com)
  • Angeli also added in the tongue-in-cheek letter that he was also requesting compensation for the wisdom teeth that he lost in 1987. (insideedition.com)
  • P.S. I am still waiting for the money for my wisdom teeth from 1987. (insideedition.com)
  • This can cause crowding, pain, infection and swelling, leading most dentists to extract wisdom teeth. (livestrong.com)
  • Wisdom tooth extraction is minor surgery, and requires careful aftercare for proper healing. (livestrong.com)
  • Drinking carbonated soda just after having your wisdom teeth pulled can lead to problems. (livestrong.com)
  • Wisdom tooth extraction is usually performed under a general anesthetic, though many dentists and oral surgeons offer conscious sedation. (livestrong.com)
  • Baby and wisdom teeth are sources of stem cells that could be 'banked' for future health needs, says Robey. (slashdot.org)
  • Plus, if you still have your wisdom teeth, it's nice to know you're walking around with your own source of stem cells. (slashdot.org)
  • Here GameiMax has arrived with Baby Wisdom Tooth for you. (getjar.com)
  • The department of oral surgery at Charité Universitätsmedizin Berlin provides the researchers with the teeth they require for their research in the form of removed wisdom teeth. (tu-berlin.de)
  • When absence of the second molar is observed at least two years behind is scheduled time, a radiographic examination is required to disclose if the cessation of eruption of the second molar is associated to an abnormal inclination of the wisdom teeth [ 3 , 4 ]. (mdpi.com)
  • Embryonic tooth germs are generated from dental pulp cells in a lab using a special method of cultivation. (tu-berlin.de)
  • So grab the brush (and the floss too) and join us as we explore the fascinating world of teeth. (listverse.com)
  • Waiting an hour afterward to brush teeth - because acid softens enamel, which would then erode more easily during brushing. (philly.com)
  • Brush your teeth well twice a day - after breakfast and last thing before going to bed. (cyh.com)
  • Brush that stain off and remember how you did it, so that you can add that to how you clean your teeth. (cyh.com)
  • If you use a regular toothbrush, you will need to brush your teeth with the bristles angled both upwards and downwards to get a good clean over your braces. (wikihow.com)
  • Brush the outer side of your teeth. (wikihow.com)
  • Now brush the outside of your top teeth. (wikihow.com)
  • With your teeth still together, gently brush in circular motions. (wikihow.com)
  • If you are using a regular toothbrush, you will want to slant the brush both towards your gumline and toward the top of your tooth as well. (wikihow.com)
  • And our distant ancestors didn't even brush their teeth and they had better teeth than we do, if you look back through Weston A. Price's photographs. (sott.net)
  • Kids in South Australia now have much healthier teeth than their grandparents had because the fluoride makes their teeth stronger. (cyh.com)
  • So we're going to talk about general care, natural ways that you can take care of your teeth, flossing, mercury amalgams, fluoride, root canals, the standard medical approaches as well. (sott.net)
  • It is important to look after your first teeth and your permanent teeth. (cyh.com)
  • However, active thumb sucking with a lot of motion can cause damage to primary (baby) teeth, though this usually corrects itself as the permanent teeth come in. (healthline.com)
  • Most of these issues resolve or won't develop at all if thumb sucking drops off by the time the permanent teeth are in. (healthline.com)
  • Your child's permanent teeth will not start coming in until they are 6 years old. (healthline.com)
  • From 6 years of age you can use adult toothpaste, but make sure you spit it out when you have finished cleaning your teeth. (cyh.com)
  • People do not grow new teeth if they loose a tooth once their adult teeth replace their baby teeth, so take good care of the ones that you have. (cyh.com)
  • [7] When primary teeth are injured, the resulting treatment prioritises the safety of the adult tooth, [7] and should avoid any risk of damaging the permanent successors. (wikipedia.org)
  • [8] This is because the root apex of an injured primary tooth lies near the tooth germ of the adult tooth. (wikipedia.org)
  • Therefore, a displaced primary tooth will be removed if it is found to have encroached upon the developing adult tooth germ. (wikipedia.org)
  • I went sporadically as an adult once I got dental insurance and I did have braces as a teenager, but I don't think during that time at all I had my teeth cleaned. (sott.net)
  • Stainless steel crowns with conservative preparation may be an effective method to eliminate sensitivity and prevent further breakdown in teeth with enamel defects requiring full-coverage crowns. (wikipedia.org)
  • The parthenogenic theory, which suggests an origin from the primordial germ cells, is now the most widely accepted. (medscape.com)
  • This theory is bolstered by the anatomic distribution of the tumors along lines of migration of the primordial germ cells from the yolk sac to the primitive gonads. (medscape.com)
  • There is a high level of dental caries in deciduous (baby) teeth in developed countries, at a rate of 20.5% in children aged 2-5 in the US and 25% in children aged 3 in Japan. (medicalnewstoday.com)
  • A team of researchers based in Japan set out to investigate smoking during pregnancy and exposure to household smoke in infants at 4 months of age as risk factors for caries in deciduous teeth. (medicalnewstoday.com)
  • They wanted to know whether maternal smoking during pregnancy and exposure of infants to tobacco smoke at the age of 4 months would increase the risk of caries in deciduous teeth. (medicalnewstoday.com)
  • Incidence of caries in deciduous teeth was defined as at least one decayed, missing or filled tooth assessed by qualified dentists. (medicalnewstoday.com)
  • Exposure to secondhand smoke at 4 months of age, which is experienced by half of all children of that age in Kobe City, Japan, is associated with an increased risk of caries in deciduous teeth. (medicalnewstoday.com)
  • 1. The initiation of the permanent tooth dental lamina (secondary dental lamina) begins lingual to the developing primary tooth. (studystack.com)
  • The number of teeth generated will then be investigated, looking at how tooth germ number can be reduced or increased by apoptosis, fusion of tooth germs, creation of new tooth germs, and the generation of additional teeth from existing tooth germs. (wiley.com)
  • If it helps me wash harmful germs away, sure! (bbc.co.uk)
  • So what do these harmful germs do, exactly? (bbc.co.uk)
  • By some freak luck, I managed to keep all of my baby teeth in a packet after they all fell out. (slashdot.org)
  • They may also recommend letting your child continue with the behavior until they give it up on their own, despite the possible effects on their baby teeth . (healthline.com)
  • Sometimes they would have parts of the tooth cut out or shaped to make it look more interesting. (listverse.com)
  • Name the 3 parts of the tooth germ. (studystack.com)
  • There are certain kinds of germs that sanitizers aren't great at getting rid of, and many people don't use them properly (not using enough or wiping it off prematurely, for example). (answers.com)
  • Hand sanitizers are an ideal form of defense against these germs. (thehour.com)
  • They would have their dentists use a primitive drill to decorate their teeth. (listverse.com)
  • Dentists will typically advise attempting teeth whitening very first, to steer clear of the want for far more complicated cosmetic operate. (dentist-in-greece.com)
  • Of course, as time went on and the dental profession truly began, actual dentists became irritated at barbers and others who continued to practice without serious training, and now full licensing requirements mean you can no longer go to the village blacksmith to get your tooth pulled. (listverse.com)
  • Instead of dentists replacing the teeth with failed bonds, we're hoping that using these crystals during the bond-making process will provide the strength to save the bonds,' Dr. Tay says. (dentistry.co.uk)
  • Our end goal is that this material will repair a cavity on its own so that dentists don't have to fill the tooth. (dentistry.co.uk)
  • In conclusion, the findings of this study showed that type III collagen is a regular component of the papillae of human tooth germs whereas type I collagen is present in a significantly lesser amount. (bvsalud.org)
  • Jain and her team swished samples of human tooth enamel in 13 different drinks for 15 minutes four times a day, then stored the enamel chips in artificial saliva the rest of the time. (philly.com)
  • 19057258 - Human teeth with cavity needing treatment photographed from a. (123rf.com)
  • 41693062 - A lead cavity filling on one molar in a set of false human teeth. (123rf.com)
  • Washing your hands frequently is the best tool you have to keep these germs at bay. (lovetoknow.com)
  • While you do not need to go overboard with maintaining your hygiene, practicing daily showering, teeth brushing and hand washing will go a long way in keeping your body healthy. (ehow.co.uk)
  • Washing your hands will help eliminate the spreading of germs, according to Family Education. (ehow.co.uk)
  • Obsessive hand washing, due to fear of germs or stickiness or chemicals. (latitudes.org)
  • Once you have a tooth that is so broken that it requirements extra support (your dentist will advise you when this happens), you'll need to get a crown. (dentist-in-greece.com)
  • I am not a dentist, but I would say if you have permanent tooth pain a dentist should be consulted. (dentist-in-greece.com)
  • I broke my back tooth final year and had to go to the dentist to have it taken out. (dentist-in-greece.com)
  • DCPs are also limited as they cannot use local anaesthetic (a prescription only medicine), take radiographs or carry out tooth whitening without the prescription from a dentist. (atoothgerm.co.uk)
  • Back before modern dental science, people still had problems with their teeth, but oftentimes there wasn't anything approaching an actual dentist around. (listverse.com)
  • As a trained principal and hobby dentist, I can verify that there is definitely a gap in [the student's] teeth that was not there this morning when he came in," Angeli wrote. (insideedition.com)
  • If you don't clean your teeth, you get a sort of sticky film and when you go to the dentist, this is what they have to scrape off. (thenakedscientists.com)
  • Dental floss cleans between your teeth but should only be used if you have been shown how to floss at the dentist. (cyh.com)
  • It was very big and heavy and the dentist had to turn a handle [like using a hand drill for drilling holes in wood] to drill out all the bad bits in the tooth. (cyh.com)
  • Calcium buildup on teeth can often be prevented by regular brushing, but you'll need the help of your dentist to remove it if it decides to stick around. (colgate.com)
  • If later on you notice your child's front teeth are jutting out, or if your child seems to have a problem with their bite, talk to a pediatric dentist about your concerns. (healthline.com)
  • Stop use and ask a dentist if oral irritation or tooth sensitivity occurs. (riteaid.com)
  • So we'll see if we can narrow down more natural ways to take care of your teeth so you don't have to visit the dentist as often, if ever hopefully. (sott.net)
  • However, if others use your toothbrush (or you use someone else's) germs can be spread. (medicinenet.com)
  • Remember to clean your toothbrush holder regularly to remove germs. (medicinenet.com)
  • Do not share a toothbrush as this can spread germs. (cyh.com)
  • In the year 1770 the first toothbrush was invented and so were the first false teeth (made out of porcelain) by William Addis in England. (cyh.com)
  • Rub the toothbrush back and forth across your teeth while gradually moving the toothbrush across your bottom teeth. (wikihow.com)
  • Make sure you move the toothbrush across all your front teeth and back to the outsides of your molars as well. (wikihow.com)
  • And the University of Alabama at Birmingham found that fecal germs were on your toothbrushes too. (medicinenet.com)
  • If toothbrushes touch they can swap germs. (medicinenet.com)
  • ENKE Nomad Electric Toothbrushes give patients the ability to better clean their teeth anywhere they go, while catering to sensitive teeth. (bio-medicine.org)