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)
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)
One of a set of bone-like structures in the mouth used for biting and chewing.
The proteins that are part of the dental enamel matrix.
The teeth of the first dentition, which are shed and replaced by the permanent 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 neck portion of the UTERUS between the lower isthmus and the VAGINA forming the cervical canal.
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)
Loss of the tooth substance by chemical or mechanical processes
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)
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 failure to retain teeth as a result of disease or injury.
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)
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 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)
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.
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)
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)
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.
Progressive loss of the hard substance of a tooth by chemical processes that do not involve bacterial action. (Jablonski, Dictionary of Dentistry, 1992, p296)
A clinically and genetically heterogeneous group of hereditary conditions characterized by malformed DENTAL ENAMEL, usually involving DENTAL ENAMEL HYPOPLASIA and/or TOOTH HYPOMINERALIZATION.
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 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.
Therapeutic technique for replacement of minerals in partially decalcified teeth.
Congenital absence of or defects in structures of the teeth.
A secreted matrix metalloproteinase that is the predominant proteolytic activity in the enamel matrix. The enzyme has a high specificity for dental enamel matrix protein AMELOGENIN.
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.
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)
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 material that descends to the earth or water well beyond the site of a surface or subsurface nuclear explosion. (McGraw-Hill Dictionary of Chemical and Technical Terms, 4th ed)
The surgical removal of a tooth. (Dorland, 28th ed)
The ratio of radiation dosages required to produce identical change based on a formula comparing other types of radiation with that of gamma or roentgen rays.
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 susceptibility of the DENTAL ENAMEL to dissolution.
Substances that promote DENTAL CARIES.
A tooth from which the dental pulp has been removed or is necrotic. (Boucher, Clinical Dental Terminology, 4th ed)
A hydrated form of silicon dioxide. It is commonly used in the manufacture of TOOTHPASTES and as a stationary phase for CHROMATOGRAPHY.
The observation, either continuously or at intervals, of the levels of radiation in a given area, generally for the purpose of assuring that they have not exceeded prescribed amounts or, in case of radiation already present in the area, assuring that the levels have returned to those meeting acceptable safety standards.
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.
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.
The total amount of a chemical, metal or radioactive substance present at any time after absorption in the body of man or animal.
A genus of the order Sirenia comprising what are commonly called manatees. The distinguishing characteristics include a tail that is not notched, a short nasal cavity, the absence of nasal bones, and enamel-covered teeth. Members of this genus are found in marine bays and/or sluggish rivers, usually in turbid water. (From Scott, Concise Encyclopedia Biology, 1996)
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)
Stable oxygen atoms that have the same atomic number as the element oxygen, but differ in atomic weight. O-17 and 18 are stable oxygen isotopes.
The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.
A genus of the order Sirenia characterized by a notched tail, the presence of nasal bones and a long nasal cavity, and large columnar teeth lacking enamel. Dugongs inhabit the coastal waters of the Indian Ocean, Red Sea, and the Malay Archipelago. (From Scott, Concise Encyclopedia Biology, 1996)
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)
Circulation of water among various ecological systems, in various states, on, above, and below the surface of the earth.
The amount of radiation energy that is deposited in a unit mass of material, such as tissues of plants or animal. In RADIOTHERAPY, radiation dosage is expressed in gray units (Gy). In RADIOLOGIC HEALTH, the dosage is expressed by the product of absorbed dose (Gy) and quality factor (a function of linear energy transfer), and is called radiation dose equivalent in sievert units (Sv).
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
Physiologic loss of the primary dentition. (Zwemer, Boucher's Clinical Dental Terminology, 4th ed)
Tumors or cancer of the UTERINE CERVIX.
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)
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)
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)
Warfare involving the use of NUCLEAR WEAPONS.
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)
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.
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.
The 32 teeth of adulthood that either replace or are added to the complement of deciduous teeth. (Boucher's Clinical Dental Terminology, 4th ed)
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.
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)
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)
A hollow part of the alveolar process of the MAXILLA or MANDIBLE where each tooth fits and is attached via the periodontal ligament.
The mineral component of bones and teeth; it has been used therapeutically as a prosthetic aid and in the prevention and treatment of osteoporosis.
Reinsertion of a tooth into the alveolus from which it was removed or otherwise lost.
Mechanical removal of a small amount of tooth structure (not more than a few tenths of a millimeter in depth) to eliminate superficial enamel discoloration defects not successfully removed by bleaching techniques. A common abrasive is a mixture of pumice and hydrochloric acid.
Measurement of tooth characteristics.
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 largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
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)
Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed)
The property of dental enamel to permit passage of light, heat, gases, liquids, metabolites, mineral ions and other substances. It does not include the penetration of the dental enamel by microorganisms.
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.
A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.
A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available.
Synthetic resins, containing an inert filler, that are widely used in dentistry.
A change in the CERVIX UTERI with respect to its readiness to relax. The cervix normally becomes softer, more flexible, more distensible, and shorter in the final weeks of PREGNANCY. These cervical changes can also be chemically induced (LABOR, INDUCED).
Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration.
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)
The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.
Isotopes that exhibit radioactivity and undergo radioactive decay. (From Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
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.
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.
Inorganic derivatives of phosphoric acid (H3PO4). Note that organic derivatives of phosphoric acids are listed under ORGANOPHOSPHATES.
The fibrous CONNECTIVE TISSUE surrounding the TOOTH ROOT, separating it from and attaching it to the alveolar bone (ALVEOLAR PROCESS).
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)
A means of identifying the age of an animal or human through tooth examination.
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.
Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.
A chronic endemic form of hypoplasia of the dental enamel caused by drinking water with a high fluorine content during the time of tooth formation, and characterized by defective calcification that gives a white chalky appearance to the enamel, which gradually undergoes brown discoloration. (Jablonski's Dictionary of Dentistry, 1992, p286)
The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth.
The study of the teeth of early forms of life through fossil remains.
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 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.
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)
Materials used in the production of dental bases, restorations, impressions, prostheses, etc.
Production of a radiographic image of a small or very thin object on fine-grained photographic film under conditions which permit subsequent microscopic examination or enlargement of the radiograph at linear magnifications of up to several hundred and with a resolution approaching the resolving power of the photographic emulsion (about 1000 lines per millimeter).
The internal resistance of a material to moving some parts of it parallel to a fixed plane, in contrast to stretching (TENSILE STRENGTH) or compression (COMPRESSIVE STRENGTH). Ionic crystals are brittle because, when subjected to shear, ions of the same charge are brought next to each other, which causes repulsion.
Any preparations used for cleansing teeth; they usually contain an abrasive, detergent, binder and flavoring agent and may exist in the form of liquid, paste or powder; may also contain medicaments and caries preventives.
The reaction product of bisphenol A and glycidyl methacrylate that undergoes polymerization when exposed to ultraviolet light or mixed with a catalyst. It is used as a bond implant material and as the resin component of dental sealants and composite restorative materials.
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.
Characteristics or attributes of the outer boundaries of objects, including molecules.
The aftermost permanent tooth on each side in the maxilla and mandible.
Presentation devices used for patient education and technique training in dentistry.
Mesodermal tissue enclosed in the invaginated portion of the epithelial enamel organ and giving rise to the dentin and pulp.
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.
... from the crown to cervix to the root apex in a mature tooth. The cell is rich in endoplasmic reticulum and Golgi complex, ... In primates enamel spindles were observed where the odontoblast process reaches until the border between dentin and enamel. ... The tooth is often able to be saved by a simple restoration. In contrast, reparative dentin is secreted when the tooth has a ... Teeth in the molluscan radula are also produced by cells termed "odontoblasts". Medicine portal Tooth development Ameloblast ...
... clustering along the midline of the tooth, which resemble miniature teeth with a pulp, dentine, and a thin enamel coating. They ... though they become less circular at around the middle point of the root until passing the cervix of the tooth. This is roughly ... The tooth replacement patterns of the other teeth are unclear. The postcanine teeth were replaced more slowly than the other ... and exceedingly long teeth; the sabres of Rubidgea atrox are longer than the teeth of Tyrannosaurus. Unlike mammalian ...
... tooth cervix MeSH A14.549.167.900.710 - tooth crown MeSH A14.549.167.900.720 - tooth germ MeSH A14.549.167.900.720.250 - dental ... tooth components MeSH A14.549.167.900.250 - dental cementum MeSH A14.549.167.900.255 - dental enamel MeSH A14.549.167.900. ... tooth, deciduous MeSH A14.549.167.860.700.500 - natal teeth MeSH A14.549.167.860.715 - tooth, unerupted MeSH A14.549.167.900 - ... tooth root MeSH A14.549.167.900.750.700 - tooth apex MeSH A14.549.336 - lip MeSH A14.549.336.505 - labial frenum MeSH A14.549. ...
The enamel on the cheek teeth are among the thickest of any known ape, which would help resist high stresses while biting. In a ... of KNM-ER 1820 were at about the same level as the cervix (where the enamel meets the cementum) of its non-permanent 2nd ... The tooth root is about 5 mm (0.20 in), which is similar to most other hominins at this stage. In contrast, the root of the P. ... Thick enamel is consistent with grinding abrasive foods. The microwear patterns in P. robustus have been thoroughly examined, ...
As in all cases of tooth development, the first hard tissue to begin forming is dentin, with enamel appearing immediately ... central incisor shows the crown of the tooth as a triangle with the point at the incisal edge and the base at the cervix.[10] ... This side of the tooth tapers in size from the labial side of the tooth. As a result, the mesial and distal sides of the tooth ... For more information on general tooth development, see Tooth development.. The aggregate of cells which eventually form a tooth ...
As in all cases of tooth development, the first hard tissue to begin forming is dentin, with enamel appearing immediately ... central incisor shows the crown of the tooth as a triangle with the point at the incisal edge and the base at the cervix. The ... This side of the tooth tapers in size from the labial side of the tooth. As a result, the mesial and distal sides of the tooth ... The deciduous tooth appears in the mouth at 8-12 months of age and shed at 6-7 years, and is replaced by the permanent tooth ...
... teeth. Less common manifestations include cleft lip and palate and enamel hypocalcification (20% prevalence). Taurodontism, an ... People with Down syndrome have a lower risk of all major solid cancers, including those of lung, breast, and cervix, with the ... delayed exfoliation of baby teeth and delayed eruption of adult teeth, shorter roots on teeth, and often missing and malformed ... and early tooth loss, especially in the lower front teeth. While plaque and poor oral hygiene are contributing factors, the ...
The texture of the enamel appears to have been broadly irregular and the roots of the teeth were almost circular. The scapula ( ... which was flanked by weak grooves near the front and back edges of the teeth, reaching almost to the cervix (neck; the ... The teeth were restricted to the front two-thirds of the dentary, which bore 24 alveoli (tooth sockets) in a manner similar to ... The dentary teeth were tightly packed, but not pressed closely together, with the tooth crowns approaching each other at mid- ...
Prismatic enamel - The enamel coating on the surface of a tooth consists of prisms, solid, rod-like structures extending from ... were there are two uteri and cervices which open into the vagina, a bipartite, were two uterine horns have a single cervix that ... Mao F, Wang Y, Meng J (2015). "A Systematic Study on Tooth Enamel Microstructures of Lambdopsalis bulla (Multituberculate, ... Tooth replacement - Teeth can be replaced once (diphyodonty) or (as in toothed whales and murid rodents) not at all ( ...
... elbow electrical conduction system of the heart emboliform nucleus embolus embryo embryonic yolk stalk emissary veins enamel ... muscle thyroid thyroid cartilage thyroid gland tibia tibial tuberosity toe tomogram tongue tonsil tonsil of cerebellum tooth ... plexus cervical spinal nerves cervical spine cervical sympathetic ganglia cervical vertebrae cervicothoracic ganglion cervix ... cortex calcarine fissure calcarine sulcus calf calix calvaria calyx canal of Schlemm canaliculus cancellous canine tooth ...
Study Principles of Cavity Design in Deciduous Teeth flashcards from Dhruv Patel ... The enamel rods at the cervix in primary teeth slope occlusally instead of gingivally ... Principles of Cavity Design in Deciduous Teeth Flashcards Preview BDS 2: Adult Restorative , Principles of Cavity Design in ... Greater thickness of dentin is over the pulpal wall at the occlusal surface compared to anywhere else in the tooth ...
Study Tooth, Tongue, Salivary Glands flashcards from Brendan Knapp ... continuously produce cementum after tooth eruption to compensate for decrease in tooth length that results from enamel abrasion ... Teeth have an enamel covered ____, a cementum covered _____, and a ____ (where the 2 surface materials meet). ... Tooth, Tongue, Salivary Glands Flashcards Preview Histology Test 3 Brendan , Tooth, Tongue, Salivary Glands , Flashcards ...
Well also go over some common conditions that can affect your teeth, and well list common symptoms to watch for. Youll also ... Well go over the anatomy of a tooth and the function of each part. ... learn general tips for keeping your teeth healthy and strong. ... Ever wondered whats behind the white surface of your teeth? ... Over time, bruxism can wear down tooth enamel, leading to damage and even tooth loss. It can also cause tooth, jaw, and ear ...
Choosing enamel near the cervix of the tooth can reduce the error caused by the difference between the sample formation time ... By subtracting the enamel formation time (t), the birth date of an individual (T2) can be confirmed by enamel F14C from 2 teeth ... 14C concentrations in both enamel and organic matter of 13 teeth from 2 areas in China were examined to evaluate and improve ... and whole enamel formation time because tooth enamel formations take a long time to complete. A proper regional data set will ...
... from the crown to cervix to the root apex in a mature tooth. The cell is rich in endoplasmic reticulum and Golgi complex, ... In primates enamel spindles were observed where the odontoblast process reaches until the border between dentin and enamel. ... The tooth is often able to be saved by a simple restoration. In contrast, reparative dentin is secreted when the tooth has a ... Teeth in the molluscan radula are also produced by cells termed "odontoblasts". Medicine portal Tooth development Ameloblast ...
... get teeth into explanation free. What is get teeth into? Meaning of get teeth into medical term. What does get teeth into mean? ... Looking for online definition of get teeth into in the Medical Dictionary? ... or touch due to worn tooth enamel and, consequently, exposed dentin, usually near the cervix of the tooth. ... Synonym: secondary tooth See: deciduous tooth for illus. primary tooth. Deciduous tooth.. sclerotic tooth. A yellowish tooth ...
... apparent slowing of enamel growth along the enamel surface from cusp to cervix results from decreases in the rates of enamel ... We did not observe any obvious enamel hypoplasia on this tooth or any of the other incomplete teeth of Qafzeh 12 teeth (there ... present on the surface of lateral enamel (enamel on the sides of teeth). In the cuspal region of teeth, striae of Retzius cover ... Research on fossil enamel formation has tended to focus on anterior as opposed to posterior teeth, because cuspal enamel is ...
My Grandson has no enamel on his baby teeth, and they suspect these might be his permanent teeth. He will be 4 March 6 and is a ... has 2 uterus and 2 cervix... ...
Cervix. Prostate. Mesenchyme. Digestive Tube. Teeth Enamel. Stomach Pyloric. Cerebellum. Endothelium of Blood Vessels. Pleura. ... Teeth Enamel. Temporal Association Cortex. Temporal Auditory Neocortex. Temporal Lobe. Testes. Thalamus Lateral Nuclei. ... Dentin of Teeth. Tonsillar Recesses. Sweat Glands. Nipple. Tongue Main Corpus. Appendecular Skeleton. Connective Tissue. Neural ... Dentin of Teeth. Dermal Progenitor. Dermal Stem Cell. Dermatomes. Digestive Tube. Dopaminergic Progenitor. Dopaminergic. Dorsal ...
neck of tooth the narrowed part of a tooth between the crown and the root; called also cervix dentis and collum dentis. ... resorption of tooth structure around the cemento-enamel junction. See also odontoclastic resorption. cervical line lesions. ... neck of the tooth. The constricted area that connects the crown of a tooth to the root of a tooth. ... neck of tooth the narrowed part of a tooth between the crown and the root. ...
3.80 μm/day for anterior teeth (45) and 4.11 μm/day for postcanine teeth (34). Linear cuspal enamel thickness was determined ... This process was repeated until the enamel cervix was reached. It was not possible to determine formation times for cuspal and ... During tooth formation, biological rhythms manifest in enamel and dentine, creating a permanent record of growth rate and ... Direct assessments of tooth growth are based on incremental features in enamel and dentine, representing consistent short- and ...
Odontoclastic resorptive lesions involve the enamel cementum junction (ECJ, cervix) and root surface, leading to extensive loss ... Features of enamel in sectioned teeth (EP = enamel prisms, IP = interpit ameloblastic enamel, EDJ = enamel dentine junction). ( ... 2. Mid-crown enamel (surface enamel and enamel dentine junction) and mid-crown dentine. 3. Enamel and dentine and the enamel ... including the crown tip enamel (surface enamel, inner enamel and enamel at the enamel dentine junction, referred to as EDJ) and ...
bonelike tissue that covers the roots of the teeth in a thin layer. joins the enamel and the cervix of the tooth at the ... enamel fracture.a slight chip or fracture of the tooth enamel layer only, or with possible minimal dentin involvement. ... The anatomical crown is that portion of the tooth encased in enamel. The clinical crown is applied to the part of the crown ... a lesion starting on the enamel of the tooth and eventually grows into the dentin involving the pulp. ...
... mucus prevents the bacteria itself from attaching to teeth and causing holes in the enamel." ... Mucus is found in the linings of the body such as the lungs, mouth and cervix ... Mucus and your teeth. Mucus contains proteins that have been shown to have a protective effect on the teeth by preventing the ... Research indicates that teeth-grinding in teens is a sign of bullying ...
Tooth enamel discoloration 8. Toothache 4. Loose teeth 7. Excessive calculus 4. Iplete eruption for age (e. When spiritual ... under a local anaesthetic and/or you may need to maintain energy and balancing oxygen demands made on either side of the cervix ...
... Tissues of the Tooth Enamel вЂ" the hard tissue that covers the crown portion of the tooth (hardest ... п‚Ё Clinical Cervix вЂ" neck вЂ" the neck of the tooth at the cementoenamel junction. пЃ® Apex вЂ" the anatomic area at the end ... п‚Ё Pulp Parts of a Tooth пЃ® Crown вЂ" top portion of the tooth covered by enamel. п‚Ё Clinical crown - portion of the tooth ... п‚Ё Free gingiva вЂ" the part of the gingiva that surrounds the tooth and is not directly attached to the tooth surface. п‚Ё ...
Shellis RP (1984) Variations in growth of the enamel crown in human teeth and a possible relationship between growth and enamel ... In incisors, this line extends from the dentino-enamel junction at the cervix (neck) of the crown onto the crowns surface, ... Estimation of Age: Tooth Formation and Osteometrics. Only bones and teeth and tooth crowns that were preserved sufficiently ... states of tooth formation [18], and presence or absence of a neonatal line (NL) in the enamel of tooth crowns. The transition ...
... clustering along the midline of the tooth, which resemble miniature teeth with a pulp, dentine, and a thin enamel coating. They ... though they become less circular at around the middle point of the root until passing the cervix of the tooth. This is roughly ... The tooth replacement patterns of the other teeth are unclear. The postcanine teeth were replaced more slowly than the other ... and exceedingly long teeth; the sabres of Rubidgea atrox are longer than the teeth of Tyrannosaurus. Unlike mammalian ...
tooth. une dent. enamel. lémail (pronounced ay-my, not e-Mail). dentin. la dentine. ... cervix. le col de lutérus. Contraception. birth control pills. la pilule. coil. le sterilet. ... My gum bleeds when I brush my teeth. Ma gencive saigne quand je me brosse les dents. ...
2012). Sox2+ stem cells contribute to all epithelial lineages of the tooth via Sfrp5+ progenitors. Dev. Cell 23, 317-328. doi: ... cervix, anus, testes, lens and multiple glands. Lineage tracing experiments demonstrated that these Sox2-expressing cells ... which produce the enamel (Juuri et al., 2012). ... of giving rise to all the epithelial lineages of the tooth, ...
Stable isotope time-series in mammalian teeth: In situ δ18O from the innermost enamel layer. Geochim. Cosmochim. Acta 124, 223- ... Note that the x axis is not linear as tooth extension begins rapidly and decreases toward the cervix. Thus, isotopic values ... Tooth enamel maturation reequilibrates oxygen isotope compositions and supports simple sampling methods. Geochim. Cosmochim. ... Scholars have attempted to circumvent this limitation by quantifying oxygen isotopes in the mineral component of tooth enamel, ...
Tooth Cervix / Tooth Crown / Dental Enamel / Incisor Type of study: Case report Language: English Year: 2004 Type: Article ... Tooth Cervix / Tooth Crown / Dental Enamel / Incisor Type of study: Case report Language: English Year: 2004 Type: Article ... It may occur unilaterally or bilaterally and has been reported mostly in maxillary teeth, with a few cases occurring in the ... Adolescent , Child , Classification , Dental Enamel/abnormalities , Female , Humans , Incisor/abnormalities , Male , Mandible ...
Family and marriage Craniofacial dysostosis Physiological aspects Exceptional children Health aspects Supernumerary teeth Care ... In females the enamel of teeth is markedly pitted. In males the enamel is hypoplastic and thin. The roots of affected teeth are ... Roentgenographically, the bulbous appearance and constriction at the cervix are more evident, and obliteration of pulp chambers ... Possible teeth abnormalities include congenitally missing teeth, conically shaped teeth, and small teeth (microdontia). Skin ...
The enamel and dentin are thinner. The cervical enamel rods slope occlusally, ending abruptly at the cervix instead of being ... as in permanent teeth. Shorter clinical crown heights of primary teeth also affect the ability of these teeth to adequately ... Restoration of primary teeth differs from restoration of permanent teeth, due in part to the differences in tooth morphology. ... and V restorations in primary teeth; 4. Class III and V restorations in permanent teeth in high risk patients or teeth that ...
... yellow or brown discoloration of deciduous teeth, hypoplasia of enamel & .delayed bone development :Chloramphenicol .Gray baby ... cervix: adenocarcinoma (at 20 yr) & abnormalities •Male: hypoplastic, un descended tsetse, epidedmal cysts VI. Skin disorders B ...
The dentine-enamel junction (DEJ) is accessible only directly adjacent to the cervix of the tooth. ...
It is attached to the junction where the tooth enamel meets the root (amelocemental junction) and arises in the follicular ... Attached to the tooth cervix ( ECJ ).. * Enclose the crown of unerupted tooth. ... Arise from reduced enamel epithelium of the dental follicle of an unerupted tooth. ... Location apex of a non-vital tooth, but occasionally on the mesial or distal of the teeth. ...
... tooth enamel, nails, retina, cervix. Doubts about Social Survivability Safety/Security - Relationships within the Pack or with ... All digestion, pancreas, liver, thyroid, lung alveoli, kidney collecting tubules, bladder, uterus (w/o cervix), fallopian tubes ...
Cementum The hard, bonelike covering of the root of the tooth.. Cervix The neck of the tooth. The narrow area where the enamel ... Contour The natural shape of the tooth.. Crown That part of the tooth which is covered with enamel and which is normally ... Permanent teeth are numbered from 1 32. Primary teeth are lettered from A T. (We use a numbering system again for primary teeth ... Deciduous Teeth - Primary or Baby teeth. Edentulous - without teeth. Caries - dental term for decay. Gingiva - tissue around ...
  • The examination, therapy or surgery of the cervix and vagina by means of a specially designed endoscope introduced vaginally. (
  • There may be structural abnormalities in the uterus, cervix, or vagina that prevent the shed tissue from leaving the body. (
  • This includes not solely the anti-getting old advantages like lowering facial wrinkles and smoothing pores and skin, but in addition an assortment of benefits that stem from serving to to keep up healthy skin in the vagina, cervix, vulva, and urethra. (
  • Actinomyces israelii are normally found on tooth enamel, gums, tonsils, and membranes lining the intestines and vagina. (
  • vulva, vagina y cervix, en mujeres? (
  • I don't want to sound horribly unsympathetic, but I recently learned that my girlfriend, who I care for deeply, has 2 uterus and 2 cervix. (
  • uterine neck ( neck of uterus ) cervix uteri . (
  • Myoma, or fibromyoma, is a benign tumor that forms on the walls of the uterus and cervix. (
  • In the D & C, the cervix was expanded or dilated, as well as a curette was utilized to scrape out the contents with the uterus. (
  • More women are dyeing of fractures caused by osteoporosis than of cancer of the breast, cervix, and uterus combined. (
  • A cancer of the cervix (the neck of the uterus). (
  • Gums, also called gingiva, are the fleshy, pink connective tissue that's attached to the neck of the tooth and the cementum. (
  • But if the gums go back, the sensitive tooth necks are exposed. (
  • Bacterial deposits on the teeth lead to inflamed gums: it reddens, swells and bleeds easily. (
  • Eikenellacorrodenscauses skin and soft tissue infections with human bite and clenched fist injuries.Anaerobic bacteria likebacteroides,prevotella,fusobacterium, clostridium,peptostreptococcusare found in cervices of gums. (
  • The crown of the tooth could be the portion uncovered earlier mentioned the gums. (
  • Good hygiene includes thoroughly and regularly washing one's body (especially hands), washing one's hair, brushing and flossing teeth, and caring for gums. (
  • When pus from a tooth infection spreads to the gums. (
  • An exam of your teeth and gums to assess oral health. (
  • Crown Gum Maxillary sinus Maxilla (upper jaw) Root Nerves and blood vessels Bone Mandible (lower jaw) Gum tissue (protects and covers bone that holds roots of teeth) Impacted wisdom teeth Nerve (transmits feeling from the chin, gums, teeth, and lips) The crown is the part of the tooth that has a hard chewing surface. (
  • As the roots grow, the tooth s crown slowly pushes toward the gums until it erupts. (
  • As for snuff and chewing tobacco, they can irritate gums and cause them to pull away from teeth, exposing roots and raising the risk for tooth decay. (
  • Smokers should contact their dentist immediately if they notice any changes to their teeth, gums, or in their mouths. (
  • Oral health, which includes health of the gums, teeth, and jawbone, is a "mirror for general health and well-being" (1). (
  • It consists of periodontium, all around tooth bone and gums. (
  • Gums protect and encapsulate the bone around the tooth and also participates in digestive process. (
  • This is most frequently done by patients on the occlusal and buccal surfaces of the teeth, and less aggressively on the lingual surfaces. (
  • They form the buccal and lingual margins of the occlusal surfaces of posterior teeth. (
  • Elevated crests which form the mesial and distal margins of the occlusal surfaces of the posterior teeth, and the lingual surfaces of the anterior teeth. (
  • particularly an artificial tooth designed without cuspal prominences on the occlusal surface. (
  • The areas affected are the tooth cervix and its occlusal or incisal surface with full bone support. (
  • Fissures are mostly located on the occlusal (chewing) surfaces of posterior teeth and palatal surfaces of maxillary anterior teeth. (
  • The occlusal surfaces of teeth represent 12.5% of all tooth surfaces but are the location of over 50% of all dental caries. (
  • The objectives of restorative treatment are to repair or limit the damage from caries, protect and preserve the tooth structure, reestablish adequate function, restore esthetics (where applicable), and provide ease in maintaining good oral hygiene. (
  • Tooth preparation should include the removal of caries or improperly developed tooth structure to establish appropriate outline, tesistance, retention, and convenience form compatible with the restorative material to be utilized. (
  • Cervical caries develops on the neck of the tooth - one of the most vulnerable parts of the jaw - the site of the crown of the tooth and gum. (
  • For accurate diagnosis of caries, the doctor may ask the patient to rinse his mouth with a special colored solution that easily penetrates into damaged areas of enamel. (
  • Later stages of the development of the prickly caries require treatment of the carious region, the cleaning of the tooth channel and sealing. (
  • These non pathogenic organisms occupy the attachment sites onpharyangialmucosa and limit growth of pathogenicorganisms.Mouth has big population ofviridansstreptococcus.Strept.mutanscauses dental plaque leading to caries teeth.This produces large amounts of acid whichdemineralizesthe enamel and initiate caries.Viridansstreptis the leading cause ofsubacutebacterialendocarditisafter dental surgery. (
  • Should the accumulated polymerization contraction stress result in tooth-composite adhesive failure 3-4 , bacterial aggregation at the disrupted tooth-restoration margin may occur resulting in microleakage and later secondary caries. (
  • Teeth free of caries and fractures were stored in saline and not allowed to dry throughout the whole experiment. (
  • Dental caries , also known as tooth decay or cavity , is a disease wherein bacterial processes damage hard tooth structure ( enamel , dentin and cementum ). (
  • Sometimes caries may be directly visible, however other methods of detection such as radiograph are used for less visible areas of teeth and to judge the extent of destruction. (
  • G.V. Black created a classification system that is widely used and based on the location of the caries on the tooth. (
  • The pits and fissures of teeth provide a location for caries formation. (
  • For all types of pits and fissures, the deep infolding of enamel makes oral hygiene along these surfaces difficult, allowing dental caries to develop more commonly in these areas. (
  • As the decay progresses, caries in enamel nearest the surface of the tooth spreads gradually deeper. (
  • Once the caries reaches the dentin at the dentino-enamel junction , the decay quickly spreads laterally. (
  • Dental Cavities aka dental caries and tooth decay can be prevented. (
  • One is dental caries, the other is tooth decay. (
  • Typical deciduous teeth. (
  • There are 20 primary teeth, called also deciduous teeth, baby teeth, or milk teeth, which are eventually replaced by 32 permanent teeth, evenly divided between the upper and lower jaws. (
  • baby teeth, deciduous teeth . (
  • deciduous teeth, the 20 teeth of the first dentition, which are shed and replaced by the permanent teeth. (
  • All the deciduous teeth are expected to erupt by the time the child is 2 1/2 years of age. (
  • Dentes decidui - deciduous teeth. (
  • Only one set of teeth that erupt and remain in function throughout life (no deciduous teeth), such as in most rodents ( heterodont ) and dolphins ( homodont ), as currently accepted. (
  • The transient complement of teeth present in the mouth after eruption of some of the permanent teeth but before all the deciduous teeth are absent. (
  • Commonly seen in diphyodonts during the early stages of permanent tooth eruption, until all deciduous teeth have been exfoliated. (
  • п‚Ё Clinical Cervix вЂ" neck вЂ" the neck of the tooth at the cementoenamel junction. (
  • Cervix The neck of the tooth. (
  • On the cusps of human molars and bicuspids it attains a maximum thickness of about 2 to 2.5 mm., thinning down to almost a knife edge at the cervix or neck of the tooth. (
  • A chemical compound that is added to toothpaste and drinking water to help prevent tooth decay. (
  • This can lead to tooth decay and other problems. (
  • Problems that may occur now or in the future include: Pain Infection Cysts Gum disease Decay in the wisdom teeth and nearby teeth Interference with certain kinds of dental or orthodontic work Choosing Removal If your wisdom teeth are causing pain or infection, your dentist will likely advise removing them. (
  • To prevent tooth decay, oral infections, and tooth loss, the American Dental Association recommends semiannual dental examinations and cleanings as well as daily brushing and flossing ( 3 ). (
  • Tooth decay is caused by specific types of acid -producing bacteria that cause damage in the presence of fermentable carbohydrates such as sucrose , fructose , and glucose . (
  • These classification can be used to characterize a particular case of tooth decay in order to more accurately represent the condition to others and also indicate the severity of tooth destruction. (
  • This pattern of decay is typically described as two triangles (one triangle in enamel, and another in dentin) with their bases conjoined to each other at the dentino-enamel junction (DEJ). (
  • The bacteria which contribute to tooth decay are living organisms, just like us. (
  • While we cannot sterilize our mouths, we can minimize the potential for getting tooth decay by prevent the bacteria that is present from forming bacterial colonies. (
  • During this process, minerals in the mouth can be re-incorporated into a tooth, thus reversing, or at least minimizing, the damage that was done to the tooth during the tooth decay process (demineralization). (
  • However, in cases where there is heavy dental plaque accumulation or the person has a high sugar intake, the balance will tip in favor of tooth decay formation. (
  • A reduction of saliva reduces the benefits it provides in fighting tooth decay. (
  • It is often caused by aging whereby the salivary glands become less effective or a change in the saliva composition, placing us more at risk for tooth decay. (
  • C. trachomatis can cause infections in many organs of the body such the urethra, cervix, and rectum. (
  • Chlamydial infections include sexually transmitted diseases of the urethra, cervix, and rectum that are caused by the bacteria Chlamydia trachomatis . (
  • Clinical and histological studies have identified lesions as external, subgingival defects that initiate on the surface of the tooth root and progress to involve dentine. (
  • п‚Ё Clinical crown - portion of the tooth that is visible in the mouth. (
  • A clinical history of treatment with tetracycline and fluorescent teeth (yellow fluorescence) under ultraviolet light are criteria in making the diagnosis. (
  • Shorter clinical crown heights of primary teeth also affect the ability of these teeth to adequately support and retain intraeoronal restorations. (
  • Adenocarcinoma in situ of the uterine cervix: Clinical practice guidelines from the Italian society of colposcopy and cervical pathology (SICPCV). (
  • Selective enamel prior to application of self-etch adhesive systems in NCCLs might improve clinical performance of resin-composite cervical restorations, although further long-term research is required to confirm this. (
  • Mesonephric carcinoma of the cervix uteri: a clinical and pathologic study. (
  • The root is the part of the tooth that extends into the bone and holds the tooth in place. (
  • The root of the tooth is embedded in alveolar bone and is covered by cementum. (
  • пЃ® Alveolar bone вЂ" the part of the alveolar process that lines the bony sockets into which the roots of the teeth are embedded. (
  • пЃ® пЃ® Periodontal ligament вЂ" dense connective tissue organized into fiber groups that connects the cementum covering of the root of the tooth with the alveolar bone of the socket wall. (
  • Other developments included fibrous lamellar cortical bone, deeply-set teeth, and a secondary palate (which separates the mouth from the nasal cavity, but possibly gorgonopsians did not have this). (
  • Here we present the first rigorous analysis of the largest sample of cremated human skeletal remains (348 burial urns, N = 540 individuals) from the Carthaginian Tophet based on tooth formation, enamel histology, cranial and postcranial metrics, and the potential effects of heat-induced bone shrinkage. (
  • Alveolar Socket The socket in the alveolar bone in which the root of the tooth sits. (
  • Attached Gingiva The gum tissue that extends from the tooth onto the bone and is attached to the bone by small fibers. (
  • This will increase the necessity for sufficient calcium consumption to help their tooth enamel growth and bone formation. (
  • Below the gumline, the root anchors the tooth to the bone. (
  • Important structure here are its collagen fibers, which during chewing are extended, i.e the tooth extends and not press the bone. (
  • in contrast to them implants are difficult producer of periodontium, put load on the bone, and this is common cause of teeth loss. (
  • Therefore it is completely rested on the bone, as very little part of it is uncovered - around tooth cervix - this place is called gum pocket. (
  • The tooth bone is highly innervated and supplied with blood, which makes it very sensitive, but also fast healing area. (
  • Teeth are ankylosed directly to the alveolar bone without sockets or true root structure. (
  • During tooth formation, biological rhythms manifest in enamel and dentine, creating a permanent record of growth rate and duration. (
  • Odontoclastic resorptive lesions involve the enamel cementum junction (ECJ, cervix) and root surface, leading to extensive loss of enamel, dentine and cementum. (
  • Backscattered electron scanning electron microscopy was used to study enamel, cementum and dentine in non-resorbed, undemineralized teeth from adult cats. (
  • Analysis of the ECJ revealed thin enamel and cementum and exposed dentine at this site. (
  • Furthermore, enamel mineralization decreased from the crown tip to the ECJ, and dentine mineralization was lowest at the ECJ and cervical root. (
  • In conclusion, results suggest that the ECJ and cervical dentine could be at a greater risk of destruction by odontoclasts compared with other regions of the tooth. (
  • Despite the favorable presence of cervical enamel, composite resin bonding on cervical surface of proximal box usually takes place on aprismatic enamel or dentine. (
  • Dentine has more organic substances, that is why it has yellow shade, from which comes the different color shades of teeth. (
  • Tuberosities вЂ" rounded area on the outer surface of the maxillary bones in the area of the posterior teeth. (
  • п‚Ё Buccal вЂ" pertaining to the cheek: surface of the posterior teeth touching the cheek. (
  • buccal teeth, posterior teeth . (
  • cheek teeth, posterior teeth . (
  • cross-bite teeth, artificial posterior teeth designed to permit positioning of the modified buccal cusps of the upper teeth in the fossae of the lower teeth. (
  • Tooth enamel discoloration 8. (
  • Tetracycline Stain Drugs such as tetracycline are well known as agents that produce discoloration of the teeth. (
  • To identify if selective etching of enamel (SEE) margins improves the retention rates and marginal discoloration of cervical composite restorations in non-carious cervical lesions (NCCLs) of adult patients. (
  • However, self-etch materials do not produce the same retentive etching pattern of phosphoric acid (used in the etch-and-rinse approach when applied in enamel) , resulting in a higher incidence of marginal discoloration at the enamel margins that may affect the esthetics of the restorative procedure when compared with etch-and-rinse adhesives and may be responsible for restoration of the bonding. (
  • Based on that, the objective of this systematic review of the literature was to address the following PICO question: Does selective enamel etching improve the marginal adaptation, discoloration and retention of composite restorations in non-carious cervical lesions in and adult population? (
  • Likewise, aleve canada when used during the second half of pregnancy, while the embryo's teeth are being developed, Tetracycline can cause permanent discoloration in the baby's teeth or even enamel hypoplasia. (
  • Extrinsic discoloration is when foods, beverages, or smoking habits stain your teeth. (
  • A considerable part of the crowns of these teeth is formed by the time the child is born. (
  • enamel ABSTRACT Recent studies have suggested that Neandertals and modern humans differ in the distribution of perikymata (enamel growth increments) over their permanent anterior tooth crowns. (
  • For example, stainless steel crowns (SSCs) are recommended for teeth having received pulp therapy. (
  • geminate tooth, a tooth with a single root and root canal, but with two completely or incompletely separated crowns, resulting from invagination of a single tooth germ, causing incomplete formation of two teeth. (
  • The cervical enamel rods slope occlusally, ending abruptly at the cervix instead of being oriented gingivally, gradually becoming thinner as in permanent teeth. (
  • In primates enamel spindles were observed where the odontoblast process reaches until the border between dentin and enamel. (
  • Etch-and-rinse adhesives require dentin and enamel etching and maintenance of the moisture on the dentin surface prior to adhesive application. (
  • пЃ® Apex вЂ" the anatomic area at the end of the tooth root. (
  • anatomic teeth, artificial teeth that duplicate the anatomic forms of natural teeth.teeth that have prominent pointed or rounded cusps on the masticating surfaces and are designed to occlude with the teeth of the opposing denture or natural dentition. (
  • Pits and fissures are anatomic landmarks on a tooth where the enamel folds inward. (
  • joins the enamel and the cervix of the tooth at the cementoenamel junction. (
  • Depicted by the cementoenamel junction , the cervical line is the border between the root and crown of a tooth. (
  • All preparations were centered on the cementoenamel junction and were prepared with 45-degree enamel bevels. (
  • the enamel, especially at the cementoenamel junction (CEJ), undergoes large amounts of stress, causing micro fractures and tooth tissue loss. (
  • As the hardest tissue in your body, it helps to protect teeth from bacteria. (
  • Dentin is a layer of mineralized tissue just below the enamel. (
  • Thus, dentin and pulp tissue have similar embryological backgrounds, because both are originally derived from the dental papilla of the tooth germ. (
  • The crown is covered by enamel , which is related to the epithelial tissue of the skin and is the hardest substance in the human body. (
  • Within the dentin, in a space in the center of the tooth, is the dental pulp , a soft, sensitive tissue that contains nerves and blood and lymph vessels. (
  • bonelike tissue that covers the roots of the teeth in a thin layer. (
  • soft tissue of the tooth which develops from the connective tissue of the dental papilla. (
  • the only tissue considered as both part of the tooth and the periodontium.functions as an area of attachment for the periodontal ligament fibers. (
  • Anatomy of the Teeth Tissues of the Tooth Enamel вЂ" the hard tissue that covers the crown portion of the tooth (hardest substance in the body). (
  • пЃ® пЃ® Pulp вЂ" the vital tissues of the tooth consisting of nerves, blood vessels, and connective tissue. (
  • пЃ® Gingiva вЂ" the mucous membrane tissue that immediately surrounds the tooth. (
  • This cell layer ultimately gives rise to nervous tissue, skin, mammary glands, pituitary gland, and enamel of the teeth. (
  • The enamel is the hardest calcified tissue in the human body. (
  • That's because smoking affects the way the bones and soft tissue in your teeth attach. (
  • For patients with these conditions, prophylaxis is reasonable for all dental procedures that involve manipulation of gingival tissue or the periapical region of teeth or perforation of the oral mucosa (12). (
  • [7] As in all cases of tooth development, the first hard tissue to begin forming is dentin , with enamel appearing immediately afterwards. (
  • Pulp is the innermost portion of the tooth. (
  • Left untreated, they can grow deeper into the tooth, eventually reaching the pulp. (
  • In vertebrates, an odontoblast is a cell of neural crest origin that is part of the outer surface of the dental pulp, and whose biological function is dentinogenesis, which is the formation of dentin, the substance beneath the tooth enamel on the crown and the cementum on the root. (
  • Odontoblasts are large columnar cells, whose cell bodies are arranged along the interface between dentin and pulp, from the crown to cervix to the root apex in a mature tooth. (
  • Thus with the formation of primary dentin, the cell moves pulpally, away from the basement membrane (future dentinoenamel junction) at the interface between the inner enamel epithelium and dental papilla, leaving behind the odontoblastic process within the pulp. (
  • a lesion starting on the enamel of the tooth and eventually grows into the dentin involving the pulp. (
  • п‚Ё Pulp Parts of a Tooth пЃ® Crown вЂ" top portion of the tooth covered by enamel. (
  • The pulp chambers of primary teeth are proportionately larger and closer to the surface. (
  • Young permanent teeth also exhibit characteristics that need to be considered in restorative procedures, such as large pulp chambers and broad contact areas that are proximal to primary teeth. (
  • The expanded cavity within the tooth that contains the pulp. (
  • A tooth is made up of a few elements: the crown, pulp, and root. (
  • My Grandson has no enamel on his baby teeth, and they suspect these might be his permanent teeth. (
  • Typical permanent teeth. (
  • Both the primary teeth and the permanent teeth begin to develop before birth. (
  • The permanent teeth form in the jaw even before the primary ones have erupted, with the incisors and the canines beginning to calcify during the first 6 months of life. (
  • As the adult teeth calcify, the roots of the primary ones gradually disappear, or resorb, and are completely gone by the time the permanent teeth are ready to appear. (
  • Restoration of primary teeth differs from restoration of permanent teeth, due in part to the differences in tooth morphology. (
  • Primary teeth contact areas are broad and flattened rather than being a small distinct circular contact point, as in permanent teeth. (
  • Recommendations Dentin/enamel adhesives Dentin/enamel adhesives allow bonding of resin-based eomposites and eompomers to primary and permanent teeth. (
  • In vitro studies have shown that enamel and dentin bond strength is similar for primary and permanent teeth. (
  • Bonding onto aprismatic enamel is compromised by altered etching pattern 5 and dentin bond is degraded, especially in permanent teeth 5-6 . (
  • 2 The Trouble with Wisdom Teeth Wisdom teeth, which are known for the dental problems they may cause, are the last permanent teeth to develop. (
  • 4 Understanding Wisdom Teeth Wisdom teeth are much like other permanent teeth. (
  • Dentes permanentes - permanent teeth. (
  • Considered to be the first set of teeth that are shed at some point and replaced by permanent teeth. (
  • Some distractors feel this term is not totally correct because in some species primary teeth are also their permanent teeth, and even in diphyodonts some permanent teeth (i.e., the dog: first premolar and molars) may theoretically also classify as primary, since all teeth may eventually be exfoliated. (
  • Permanent teeth that do not succeed a deciduous counterpart. (
  • Any constricted part of an elongated structure, as in the neck of an organ (e.g., uterine cervix). (
  • Medtalk Any constricted part of an elongated structure-eg, neck of an organ-eg, uterine cervix. (
  • to provide a practical tool for the evidenced-based management of adenocarcinoma in situ (AIS) of the uterine cervix, a challenging diagnosis encountered by colposcopists in their daily practice. (
  • The aim of this study was to evaluate the stress concentration and distribution whether restoring the cavity or not while restoring with metal ceramic crown on tooth with abfraction lesion using finite element analysis . (
  • that portion of the tooth covered with enamel, which is normally visible in the oral cavity. (
  • Amputation of a portion of the cervix must, ramipril blood pressure medicine, name running gallop and in which the members appear to act sepa, altacet gel ingredients, signs of consolidation in the lungs may be of assistance, ramipril tabletten 2.5 mg, and the ring of central enamel surrounding the external dental cavity, ramipril tablet side effects, Internal administration of water. (
  • 7. improved aesthetics can be achieved with minimal tooth reduction, and the palatal surface of the tooth is unchanged so that incisal guidance is maintained. (
  • The incisal portion of an anterior tooth. (
  • Hutchinson teeth, a tooth abnormality seen in congenital syphilis , in which the permanent incisors have a screwdriverlike shape, sometimes with notching of the incisal edges or depressions in the labial surfaces above the cutting edge. (
  • There is typically a single cusp on each tooth, called an incisal ridge or incisal edge. (
  • D) The osteotomy is kept in an angulation aligned with the incisal edge of the adjacent teeth. (
  • In modern humans, perikymata are usually more unevenly distributed, with perikymata becoming increasingly more closely packed as growth progresses from cusp to cervix (but dropping off in density in the last (cervical) decile of growth). (
  • Although the connection between anterior tooth enamel formation time and life history has been questioned (e.g. (
  • Although some scholars debate whether Neanderthals had shorter periods of anterior tooth growth than modern humans ( 6 , 7 ), it is known that anterior tooth growth requires more time in great apes than in humans ( 16 ) and is variable among human populations ( 17 ). (
  • This level of variation within and between hominoid species suggests that anterior tooth formation times are not a reliable predictor of life history ( 6 ). (
  • Anterior Tooth 0.6MM Ceramic Veneer IPS. (
  • The faciopalatal dimension of an anterior tooth, for example, is often greater than its mesiodistal dimension. (
  • When an anterior tooth requires extraction, during the extraction process the thin facial cortex often becomes compromised or lost. (
  • Supernumerary teeth are common in the maxillary anterior area (mesiodens) and the maxillary molar area (distomolars or fourth molars). (
  • 300 of at least 520 days) molars, and that the formation of this crown portion occurred largely after the teeth had already reached functional occlusion. (
  • Authorization was obtained from the owner of the dental office and only teeth extracted for orthodontic and periodontal reasons or impacted third molars were included in the study, for ethical reasons. (
  • The wisdom teeth are molars, or chewing teeth. (
  • The wisdom teeth are the last in line, which is why they re called third molars. (
  • 5 There are eight other molars for chewing, so most people get along fine without wisdom teeth. (
  • is acellular after tooth eruption and cannot repair itself. (
  • Eruption, or cutting of teeth, is slower in some children than others, but the primary teeth generally begin to appear when the infant is between 6 and 9 months of age, and the process is completed by the age of 2 to 2½ years. (
  • Quantification of these internal and external incremental features yields developmental benchmarks, including ages at crown completion, tooth eruption, and root completion. (
  • By measuring tooth formation in the entire dentition of a juvenile Neanderthal from Scladina, Belgium, we show that most teeth formed over a shorter time than in modern humans and that dental initiation and eruption were relatively advanced. (
  • Knowledge of the timing of fossil hominin dental development and tooth eruption is fundamental to assessments of growth and development (for review, see refs. (
  • Moreover, studies of Neanderthal cranial and postcranial ontogeny often use modern European and North American standards of dental development to assign ages and make comparisons (e.g., 4, 15), although it is unclear whether Neanderthal and modern human children actually follow the same schedule of dental development and tooth eruption. (
  • Furthermore, little is known about ages at tooth eruption in Neanderthals ( 5 ), although the timing of molar eruption is the best indicator to predict development and life history parameters across primates ( 18 - 21 ). (
  • A recent study reported an age of Neanderthal firstmolar eruption based on an isolated tooth from La Chaise that was similar to the modern human mean value ( 8 ). (
  • However, this age is difficult to determine from a fully formed and isolated tooth, particularly without knowledge of the mean root length at first molar eruption in other Neanderthals. (
  • Model 10 was restored tooth on abfraction lesion with composite resin and metal ceramic crown restoration which margin is positioned on lower border of abfraction lesion. (
  • Under load A or load B, on tooth that abfraction lesion was restored with composite resin, the stress value was reduced on the apex. (
  • To compare marginal seal at tooth-material and material-material interfaces in the proximal box in combined amalgam/composite resin restorations. (
  • Marginal adaptation was evaluated at the following interfaces: amalgam-tooth (A), amalgam-composite resin (AC) and composite resin-tooth (C). Microleakage was evaluated by means of methylene blue infiltration after 7-day water storage and thermocycling regimen (1500 cycles). (
  • Slight indentation that encircles the tooth and marks the junction of the crown with the root. (
  • In this case, the affected areas are saturated with special preparations for enamel remineralization. (
  • Specifically, a tooth (which is primarily mineral in content) is in a constant state of back-and-forth demineralization and remineralization between the tooth and surrounding saliva . (
  • When the pH at the surface of the tooth drops below 5.5, demineralization proceeds faster than remineralization (i.e. there is a net loss of mineral structure on the tooth's surface). (
  • What is the crown of the tooth? (
  • [2] The crown of the tooth is completed 1.5 months after birth and erupts into the mouth at around 10 months of age, making these teeth usually the second type of teeth to appear. (
  • [1] The crown of the tooth is completed at around 4-5 years of age and erupts into the mouth at 7-8 years of age. (
  • The periodontium not only helps hold the tooth in place but also acts to cushion it against the pressure caused by biting and chewing. (
  • Untreated, periodontitis leads to further destruction of the periodontium and eventually to the loss of teeth . (
  • Periodontium is "the spring" of the tooth. (
  • This study was undertaken in order to determine whether features of the surface anatomy and mineralization of feline teeth could explain why odontoclastic resorptive lesions are so prevalent in this species. (
  • A cytological test finding often from PAP SMEARS that shows abnormal lesions of SQUAMOUS EPITHELIAL CELLS of the CERVIX. (
  • Tooth cavities are small holes caused by a buildup of bacteria and acid on the surface of a tooth. (
  • The acid actually causes bonding of the restorative material to the tooth. (
  • Enamel specimens (E20) were etched with 37% phosphoric acid, for 20 s, and dentin specimens (D15) were etched for 15 s. (
  • Acidity & oral health Lemons contain citric acid, which is corrosive and damaging to tooth enamel. (
  • So, it's important to ingest lemon juice sparingly, assuming the acid can and will eventually affect your tooth enamel. (
  • The mineral content of teeth is sensitive to increases in acidity from the production of lactic acid . (
  • The waste products they create is the acids, such as lactic acid, which cause demineralization of tooth enamel. (
  • The primary teeth begin to form about the sixth week of prenatal life, with calcification beginning about the sixteenth week. (
  • When the child is about 6, the first permanent molar comes in just behind the second molar of the primary teeth. (
  • About the same time, shedding of primary teeth begins. (
  • Maxillary central incisors of permanent and primary teeth marked in red. (
  • Several lineages of herbivorous mammals have evolved hypsodont cheek teeth to increase the functional lifespan of their dentition. (
  • Dental remains of Homo floresiensis excavated during 2002-2004 at Liang Bua, Flores, Indonesia, consist of one partial maxillary dentition, two nearly complete mandibular dentitions, and four isolated teeth. (
  • 2). accessional teeth, the molar teeth of the permanent dentition, so called because they do not supplant any deciduous predecessors in the dental arch. (
  • Functionally different types of teeth are represented in the dentition. (
  • Apical Foramen The opening at the tip of the root through which the blood and nerve supply enter and leave the tooth. (
  • Extraction of the associated non-vital tooth and curettage of the apical zone. (
  • In reptiles, the replacement is generally of a vertical nature with new teeth developing immediately apical to the teeth in current occlusion and replacing them when lost. (
  • Teeth have an enamel covered ____, a cementum covered _____, and a ____ (where the 2 surface materials meet). (
  • Multiple points on the top surface of these teeth help you chew and grind food. (
  • Underneath the surface enamel and cementum is a substance called dentin , which makes up the main body of the tooth. (
  • 2001). Perikymata are external manifestations of internal growth increments (striae of Retzius) present on the surface of lateral enamel (enamel on the sides of teeth). (
  • In the cuspal region of teeth, striae of Retzius cover each other in a series of domes and do not emerge as perikymata onto the enamel surface. (
  • пЃ® Cementum вЂ" the substance covering the root surface of the tooth. (
  • п‚Ё Free gingiva вЂ" the part of the gingiva that surrounds the tooth and is not directly attached to the tooth surface. (
  • Surfaces of the Teeth пЃ® Facial вЂ" pertaining to the surface of the cheek and lips (face). (
  • вЂ" pertaining to the lips: anterior surface of the anterior teeth. (
  • п‚Ё Labial пЃ® Lingual вЂ" surface of the tooth or area touching the tongue. (
  • Likewise, a conservative Class II restoration for a primary tooth could be expanded to include more surface area when the tooth is expected to exfoliate within 1 to 2 years. (
  • Unilocular radiolucency with opaque margin along the lateral surface of a vital tooth root. (
  • The first of these is characterized by the appearance on the surface of the enamel of small molten spots in the area of ​​the tooth cervix. (
  • The earliest sign of toothpaste abuse is the gradual elimination of the surface anatomy on the teeth, just as though the teeth have been sandblasted. (
  • Human enamel forms a protective covering of variable thickness over the entire surface of the crown. (
  • Its surface area is crafted from a hard, crystalline substance named enamel. (
  • Attaching a material to the surface of a tooth for cosmetic purposes. (
  • The hard outer surface of the tooth. (
  • abutment tooth, one selected to support a bridge on the basis of the total surface area of a healthy attachment apparatus. (
  • Teeth grow from a pocket on the inner side of the jawbone that brings a larger surface area of tooth in contact with the jawbone and hence attachment is stronger, as in amphibians and some lizards. (
  • The majority of a tooth's surface that is above the gum line is made up of enamel . (
  • The bulk of a tooth's surface that is below the gumline is not composed of enamel. (
  • The neck, also called the dental cervix, sits between the crown and root. (
  • It's often hereditary, but thumb-sucking, long-term use of a pacifier or bottles, impacted or missing teeth, and poorly fitting dental appliances can also cause it. (
  • With the discovery of TRPC5 as cold transducer the odontoblast transduction theory has become a likely explanation of dentinal hypersensivity Odontoblasts first appear at sites of tooth development at 17-18 weeks in utero and remain present until death unless killed by bacterial or chemical attack, or indirectly through other means such as heat or trauma (e.g. during dental procedures). (
  • пЃ® Tissues surrounding the Teeth Alveolar process вЂ" the extension of the maxilla and mandible that surrounds and supports the teeth to form the dental arches. (
  • Calculus (or Tartar) A hard, stonelike material which forms on the teeth through the calcification (hardening) of dental plaque. (
  • As a disease of the dental bed, periodontitis is regarded as a major trigger of tooth loss. (
  • Periodontal disease, either in natural teeth level or implants is characterized by highly pathogen microbes present in the bacterial plaque and dental calculus. (
  • The area of ​​the cervix of the tooth is covered with a vulnerable thin layer of dental enamel, to the same area is difficult to reach when cleaning. (
  • 3 Your Dental Evaluation Before suggesting that your wisdom teeth be removed, your dentist will do a full evaluation. (
  • Several types of dental x-rays may be used: Intraoral x-rays show small images of three to six teeth at a time, plus a portion of the jawbone. (
  • Wisdom Teeth and Your Dental Anatomy Each type of tooth is designed either for biting or for chewing. (
  • ankylosed tooth, submerged t. anterior teeth, the incisor and canine teeth , which are in the anterior parts of the dental arches. (
  • These tissues progressively break down, producing dental cavities (holes in the teeth). (
  • Dental cavities in the enamel and dentin areas of a tooth can be a significant problem. (
  • Dental Cavities are located on a tooth where a hole is formed because so much of the tooth's mineral content has dissolved away. (
  • The amount of tooth demineralization that takes place after an exposure to sugar is partly related to the age of the dental plaque. (
  • Given the same exposed to sugar, dental plaque that is only a few hours old will not produce as much tooth demineralization as dental plaque that is several days old. (
  • It forms the line where the cementum (that covers the root) meets the enamel. (
  • It can eventually lead to an infection, causing an abscess in the root of the tooth. (
  • The odontoblasts secrete dentin throughout life, unlike enamel, which is considered secondary dentin once root formation is complete, which may be an attempt to compensate for natural wear of the enamel. (
  • Occasionally a primary tooth root does not resorb, and as a result the permanent tooth comes in outside its proper position. (
  • When this happens, it is necessary to remove the primary tooth and root. (
  • What is the root of the tooth? (
  • A periapical abscess is located at the tip of the root of the tooth. (
  • Apex The tip of the root of a tooth. (
  • Cementum The hard, bonelike covering of the root of the tooth. (
  • The narrow area where the enamel of the crown and the cementum of the root join. (
  • Root Resorption of offending tooth and occasionally the adjacent tooth. (
  • Now the deposits in the area of ​​the tooth root are gently removed and at the same time the bags are treated with an antibacterial rinse solution. (
  • AbstractTo compare the vertical root fracture (VRF) resistance of root canal-treated teeth instrumented with four different nickel -titanium (NiTi) rotary file systems and examine the dentinal crack pattern and direction using a new classification. (
  • Each tooth consists of three parts: the crown (see corona dentis ), the neck (see cervix dentis ), and the root (see radix dentis ). (
  • it has a long conical crown and the longest, most powerful root of all the teeth. (
  • The overall length of the deciduous maxillary central incisor is 16 mm on average, with the crown being 6 mm and the root being 10 mm. [9] In comparison to the permanent maxillary central incisor, the ratio of the root length to the crown length is greater in the deciduous tooth. (
  • The root of this tooth is cone-shaped with a rounded apex. (
  • the tissues that surround and support the teeth. (
  • One of the most severe and advanced consequences of periodontitis is the irreversible loss of the supporting tissues of the teeth, which can lead to loss of teeth [2]. (
  • V 2009 Wiley-Liss, Inc. The presence of perikymata on the enamel surfaces of teeth has enabled researchers to investigate differences in enamel formation time among fossil hominins, with potential implications for differences in the paces of their life histories (e.g. (
  • When fluorosis is severe, the surfaces of teeth appear eroded. (
  • However, an amalgam or resin restoration could be utilized in a tooth having conversative pulpal access, sound lateral walls, and less than 2 years to exfoliation. (
  • Related to the apex of non vital tooth or related to lateral canal. (
  • Clenching is defined as placing the teeth together with heavy force without lateral (side to side) movement of the lower jaw. (
  • When they work independently, the lateral pterygoids are responsible for lateral (side to side) movements of the lower jaw and hence are heavily active when bruxing ( grinding) the teeth. (
  • Bruxism refers to grinding or clenching your teeth. (
  • Over time, bruxism can wear down tooth enamel, leading to damage and even tooth loss. (
  • conical tooth, peg t. connate tooth, geminate t. corner tooth, the third incisor on either side of each jaw in the horse. (
  • Horner teeth, incisor teeth that are horizontally grooved owing to a deficiency of enamel. (
  • The maxillary central incisor is a human tooth in the front upper jaw, or maxilla , and is usually the most visible of all teeth in the mouth. (
  • The deciduous maxillary central incisor begins to undergo mineralization 14 weeks in utero, and at birth 5/6ths of the enamel is formed. (
  • Dentes incisivi - incisor teeth. (
  • Tetracycline is incorporated with calcium and may be observed in dentin or enamel, which are tooth structures. (
  • Along with the cementum, the periodontal ligament connects the teeth to the tooth sockets. (
  • What is the term for a tooth with two roots? (
  • It shows how close the roots of your wisdom teeth are to nerves, arteries, and other structures in or near the jaws. (
  • Nerves and blood vessels enter and exit the tooth through the roots. (
  • After a tooth has broken through, the roots continue to lengthen. (
  • By the late teens, roots of the wisdom teeth have developed and are lengthening. (
  • The digestive system consists of teeth and parodont, bones joints (two temporomandibular joints which hold the lower jaw), digestive muscles. (
  • Mucus contains proteins that have been shown to have a protective effect on the teeth by preventing the detrimental impact of oral bacteria. (
  • However, these "pathogenic" bacteria are found only in the mouth numerous, if the soft and hard plaque are not removed timely and thoroughly from the tooth. (
  • In particular, bacteria Streptococcus mutans secrete organic acids that affect the calcium wash out of the enamel. (
  • A sticky film of bacteria that grows around the teeth. (
  • Cuspal enamel formation time therefore represents an unknown portion of enamel formation time in most studies of fossil teeth. (
  • aids in the support of teeth and protects the alveolar process & periodonal ligament from bacterial invasion. (
  • Alveolar Ridge The bony ridge which supports the teeth in their working position in the arch. (
  • One study shows cigar smokers experience tooth and jawbone loss as much as cigarette smokers. (
  • A tooth abscess is a pocket of pus caused by a bacterial infection. (