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.
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)
Orthodontic techniques used to correct the malposition of a single tooth.
The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
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)
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)
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)
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 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)
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)
Presentation devices used for patient education and technique training in dentistry.
Measurement of tooth characteristics.
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 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)
Congenital absence of or defects in structures of the teeth.
The tip or terminal end of the root of a tooth. (Jablonski, Dictionary of Dentistry, 1992, p62)
Resorption in which cementum or dentin is lost from the root of a tooth owing to cementoclastic or osteoclastic activity in conditions such as trauma of occlusion or neoplasms. (Dorland, 27th ed)
The measurement of the dimensions of the HEAD.
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)
Break or rupture of a tooth or tooth root.
A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available.
Wires of various dimensions and grades made of stainless steel or precious metal. They are used in orthodontic treatment.
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)
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 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.
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.
The phase of orthodontics concerned with the correction of malocclusion with proper appliances and prevention of its sequelae (Jablonski's Illus. Dictionary of Dentistry).
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 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)
Reinsertion of a tooth into the alveolus from which it was removed or otherwise lost.
Photographic techniques used in ORTHODONTICS; DENTAL ESTHETICS; and patient education.
The planning, calculation, and creation of an apparatus for the purpose of correcting the placement or straightening of teeth.
The teeth of the first dentition, which are shed and replaced by the permanent teeth.
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).
Malocclusion in which the mandible is posterior to the maxilla as reflected by the relationship of the first permanent molar (distoclusion).
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.
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.
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)
The surgical removal of a tooth. (Dorland, 28th ed)
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.
The 32 teeth of adulthood that either replace or are added to the complement of deciduous teeth. (Boucher's Clinical Dental Terminology, 4th ed)
Traumatic or other damage to teeth including fractures (TOOTH FRACTURES) or displacements (TOOTH LUXATION).
An abnormality in the direction of a TOOTH ERUPTION.
The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth.
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.
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.
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)
Therapeutic closure of spaces caused by the extraction of teeth, the congenital absence of teeth, or the excessive space between teeth.
Use of a metal casting, usually with a post in the pulp or root canal, designed to support and retain an artificial crown.
Malocclusion in which the mandible and maxilla are anteroposteriorly normal as reflected by the relationship of the first permanent molar (i.e., in neutroclusion), but in which individual teeth are abnormally related to each other.
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 length of the face determined by the distance of separation of jaws. Occlusal vertical dimension (OVD or VDO) or contact vertical dimension is the lower face height with the teeth in centric occlusion. Rest vertical dimension (VDR) is the lower face height measured from a chin point to a point just below the nose, with the mandible in rest position. (From Jablonski, Dictionary of Dentistry, 1992, p250)
The fibrous CONNECTIVE TISSUE surrounding the TOOTH ROOT, separating it from and attaching it to the alveolar bone (ALVEOLAR PROCESS).
A tooth from which the dental pulp has been removed or is necrotic. (Boucher, Clinical Dental Terminology, 4th ed)
Anomaly of the tooth, found chiefly in upper lateral incisors. It is characterized by invagination of the enamel at the incisal edge.
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)
The complement of teeth in the jaws after the eruption of some of the permanent teeth but before all the deciduous teeth are absent. (Boucher's Clinical Dental Terminology, 4th ed)
Extraoral body-section radiography depicting an entire maxilla, or both maxilla and mandible, on a single film.
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.
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 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 collective tissues from which an entire tooth is formed, including the DENTAL SAC; ENAMEL ORGAN; and DENTAL PAPILLA. (From Jablonski, Dictionary of Dentistry, 1992)
A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.
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)
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.
Horizontal and, to a lesser degree, axial movement of a tooth in response to normal forces, as in occlusion. It refers also to the movability of a tooth resulting from loss of all or a portion of its attachment and supportive apparatus, as seen in periodontitis, occlusal trauma, and periodontosis. (From Jablonski, Dictionary of Dentistry, 1992, p507 & Boucher's Clinical Dental Terminology, 4th ed, p313)
A registration of any positional relationship of the mandible in reference to the maxillae. These records may be any of the many vertical, horizontal, or orientation relations. (Jablonski, Illustrated Dictionary of Dentistry)
Dental devices such as RETAINERS, ORTHODONTIC used to improve gaps in teeth and structure of the jaws. These devices can be removed and reinserted at will.
The selective extraction of deciduous teeth during the stage of mixed dentition in accordance with the shedding and eruption of the teeth. It is done over an extended period to allow autonomous adjustment to relieve crowding of the dental arches during the eruption of the lateral incisors, canines, and premolars, eventually involving the extraction of the first premolar teeth. (Dorland, 28th ed)
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.
The anatomical frontal portion of the mandible, also known as the mentum, that contains the line of fusion of the two separate halves of the mandible (symphysis menti). This line of fusion divides inferiorly to enclose a triangular area called the mental protuberance. On each side, inferior to the second premolar tooth, is the mental foramen for the passage of blood vessels and a nerve.
Dental procedure in which part of the pulp chamber is removed from the crown of a tooth.
A malocclusion in which maxillary incisor and canine teeth project over the mandiblar teeth excessively. The overlap is measured perpendicular to the occlusal plane and is also called vertical overlap. When the overlap is measured parallel to the occlusal plane it is referred to as overjet.
The force applied by the masticatory muscles in dental occlusion.
Either of the two fleshy, full-blooded margins of the mouth.
The result of pathological changes in the hard tissue of a tooth caused by carious lesions, mechanical factors, or trauma, which render the pulp susceptible to bacterial invasion from the external environment.
Attachment of orthodontic devices and materials to the MOUTH area for support and to provide a counterforce to orthodontic forces.
Orthodontic appliances, fixed or removable, used to maintain teeth in corrected positions during the period of functional adaptation following corrective treatment. These appliances are also used to maintain the positions of the teeth and jaws gained by orthodontic procedures. (From Zwemer, Boucher's Clinical Dental Terminology, 4th ed, p263)
An abnormal passage in the oral cavity on the gingiva.
Extraoral devices for applying force to the dentition in order to avoid some of the problems in anchorage control met with in intermaxillary traction and to apply force in directions not otherwise possible.
A fabricated tooth substituting for a natural tooth in a prosthesis. It is usually made of porcelain or plastic.
The process of growth and differentiation of the jaws and face.
The proteins that are part of the dental enamel matrix.
Devices, usually alloplastic, surgically inserted into or onto the jawbone, which support a single prosthetic tooth and serve either as abutments or as cosmetic replacements for missing teeth.
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)
The movement of teeth into altered positions in relationship to the basal bone of the ALVEOLAR PROCESS and to adjoining and opposing teeth as a result of loss of approximating or opposing teeth, occlusal interferences, habits, inflammatory and dystrophic disease of the attaching and supporting structures of the teeth. (From Boucher's Clinical Dental Terminology, 4th ed)
The facial skeleton, consisting of bones situated between the cranial base and the mandibular region. While some consider the facial bones to comprise the hyoid (HYOID BONE), palatine (HARD PALATE), and zygomatic (ZYGOMA) bones, MANDIBLE, and MAXILLA, others include also the lacrimal and nasal bones, inferior nasal concha, and vomer but exclude the hyoid bone. (Jablonski, Dictionary of Dentistry, 1992, p113)
Endodontic procedure performed to induce TOOTH APEX barrier development. ROOT CANAL FILLING MATERIALS are used to repair open apex or DENTAL PULP NECROSIS in an immature tooth. CALCIUM HYDROXIDE and mineral trioxide aggregate are commonly used as the filling materials.
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.
Materials used in the production of dental bases, restorations, impressions, prostheses, etc.
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.
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 condition in which certain opposing teeth fail to establish occlusal contact when the jaws are closed.
Inability or inadequacy of a dental restoration or prosthesis to perform as expected.
Loose-fitting removable orthodontic appliances which redirect the pressures of the facial and masticatory muscles onto the teeth and their supporting structures to produce improvements in tooth arrangements and occlusal relations.
The wearing away of a tooth as a result of tooth-to-tooth contact, as in mastication, occurring only on the occlusal, incisal, and proximal surfaces. It is chiefly associated with aging. It is differentiated from TOOTH ABRASION (the pathologic wearing away of the tooth substance by friction, as brushing, bruxism, clenching, and other mechanical causes) and from TOOTH EROSION (the loss of substance caused by chemical action without bacterial action). (Jablonski, Dictionary of Dentistry, 1992, p86)
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)
Stainless steel. A steel containing Ni, Cr, or both. It does not tarnish on exposure and is used in corrosive environments. (Grant & Hack's Chemical Dictionary, 5th ed)
A bony prominence situated on the upper surface of the body of the sphenoid bone. It houses the PITUITARY GLAND.
Loose, usually removable intra-oral devices which alter the muscle forces against the teeth and craniofacial skeleton. These are dynamic appliances which depend on altered neuromuscular action to effect bony growth and occlusal development. They are usually used in mixed dentition to treat pediatric malocclusions. (ADA, 1992)
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.
A hollow part of the alveolar process of the MAXILLA or MANDIBLE where each tooth fits and is attached via the periodontal ligament.
The structure that forms the roof of the mouth. It consists of the anterior hard palate (PALATE, HARD) and the posterior soft palate (PALATE, SOFT).
A facial expression which may denote feelings of pleasure, affection, amusement, etc.
Synthetic resins, containing an inert filler, that are widely used in dentistry.
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)
Radiographic techniques used in dentistry.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.
Recognition and elimination of potential irregularities and malpositions in the developing dentofacial complex.
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)
Fixed or removable devices that join teeth together. They are used to repair teeth that are mobile as a result of PERIODONTITIS.
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.
Holding a DENTAL PROSTHESIS in place by its design, or by the use of additional devices or adhesives.
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)
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.
Either one of the two small elongated rectangular bones that together form the bridge of the nose.
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.
Malocclusion in which the mandible is anterior to the maxilla as reflected by the first relationship of the first permanent molar (mesioclusion).
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 physical misalignment of the upper (maxilla) and lower (mandibular) jaw bones in which either or both recede relative to the frontal plane of the forehead.
A white powder prepared from lime that has many medical and industrial uses. It is in many dental formulations, especially for root canal filling.
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 inferior region of the skull consisting of an internal (cerebral), and an external (basilar) surface.
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.
The intermediate sensory division of the trigeminal (5th cranial) nerve. The maxillary nerve carries general afferents from the intermediate region of the face including the lower eyelid, nose and upper lip, the maxillary teeth, and parts of the dura.
Investigations conducted on the physical health of teeth involving use of a tool that transmits hot or cold electric currents on a tooth's surface that can determine problems with that tooth based on reactions to the currents.
Diseases of the PERIAPICAL TISSUE surrounding the root of the tooth, which is distinguished from DENTAL PULP DISEASES inside the TOOTH ROOT.
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.
Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration.
Physiologic loss of the primary dentition. (Zwemer, Boucher's Clinical Dental Terminology, 4th 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)
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)
A branch of the trigeminal (5th cranial) nerve. The mandibular nerve carries motor fibers to the muscles of mastication and sensory fibers to the teeth and gingivae, the face in the region of the mandible, and parts of the dura.
Chemicals used mainly to disinfect root canals after pulpectomy and before obturation. The major ones are camphorated monochlorophenol, EDTA, formocresol, hydrogen peroxide, metacresylacetate, and sodium hypochlorite. Root canal irrigants include also rinsing solutions of distilled water, sodium chloride, etc.
A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1284; Corsini, Concise Encyclopedia of Psychology, 1987, p764-5)
Surgical reshaping of the gingivae and papillae for correction of deformities (particularly enlargements) and to provide the gingivae with a normal and functional form, the incision creating an external bevel. (Dorland, 28th ed)
The structures surrounding and supporting the tooth. Periodontium includes the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT.
Resorption or wasting of the tooth-supporting bone (ALVEOLAR PROCESS) in the MAXILLA or MANDIBLE.
A complete denture replacing all the natural maxillary teeth and associated maxillary structures. It is completely supported by the oral tissue and underlying maxillary bone.
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)
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 anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.
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.
Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.
Exposure of the root surface when the edge of the gum (GINGIVA) moves apically away from the crown of the tooth. This is common with advancing age, vigorous tooth brushing, diseases, or tissue loss of the gingiva, the PERIODONTAL LIGAMENT and the supporting bone (ALVEOLAR PROCESS).
Any of several burrowing rodents of the families MURIDAE and Bathyergidae, found in eastern Europe, Africa, and Asia. They have short limbs, small eyes with permanently closed lids, and no tail. Three genera SPALAX (Muridae), Heterocephalus (Bathyergidae) and Cryptomys (Bathyergidae) are used frequently as experimental animals in biomedical research. (From Walker's Mammals of the World, 6th ed)
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)
Insertion of a tapered rod through the root canal into the periapical osseous structure to lengthen the existing root and provide individual tooth stabilization.
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)
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.
Progressive loss of the hard substance of a tooth by chemical processes that do not involve bacterial action. (Jablonski, Dictionary of Dentistry, 1992, p296)
Computed tomography modalities which use a cone or pyramid-shaped beam of radiation.
Inorganic compounds that contain calcium as an integral part of the molecule.
Insertion of an implant into the bone of the mandible or maxilla. The implant has an exposed head which protrudes through the mucosa and is a prosthodontic abutment.
A dental specialty concerned with the prevention and correction of dental and oral anomalies (malocclusion).
The seepage of fluids, debris, and micro-organisms between the walls of a prepared dental cavity and the restoration.
The use of a chemical oxidizing agent to whiten TEETH. In some procedures the oxidation process is activated by the use of heat or light.
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Polymeric resins derived from OXIRANES and characterized by strength and thermosetting properties. Epoxy resins are often used as dental materials.
Any of the numerous types of clay which contain varying proportions of Al2O3 and SiO2. They are made synthetically by heating aluminum fluoride at 1000-2000 degrees C with silica and water vapor. (From Hawley's Condensed Chemical Dictionary, 11th ed)
Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
Small cylindrical pieces of metal used to enhance retention.
Hand-held tools or implements especially used by dental professionals for the performance of clinical tasks.
Surgical excision of the gingiva at the level of its attachment, thus creating new marginal gingiva. This procedure is used to eliminate gingival or periodontal pockets or to provide an approach for extensive surgical interventions, and to gain access necessary to remove calculus within the pocket. (Dorland, 28th ed)
The rotational force about an axis that is equal to the product of a force times the distance from the axis where the force is applied.
A computer based method of simulating or analyzing the behavior of structures or components.
Used as a dental cement this is mainly zinc oxide (with strengtheners and accelerators) and eugenol. (Boucher's Clinical Dental Terminology, 4th ed, p50)
Inorganic derivatives of phosphoric acid (H3PO4). Note that organic derivatives of phosphoric acids are listed under ORGANOPHOSPHATES.
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)
Mesodermal tissue enclosed in the invaginated portion of the epithelial enamel organ and giving rise to the dentin and pulp.
Anterior midline brain, cranial, and facial malformations resulting from the failure of the embryonic prosencephalon to undergo segmentation and cleavage. Alobar prosencephaly is the most severe form and features anophthalmia; cyclopia; severe INTELLECTUAL DISABILITY; CLEFT LIP; CLEFT PALATE; SEIZURES; and microcephaly. Semilobar holoprosencepaly is characterized by hypotelorism, microphthalmia, coloboma, nasal malformations, and variable degrees of INTELLECTUAL DISABILITY. Lobar holoprosencephaly is associated with mild (or absent) facial malformations and intellectual abilities that range from mild INTELLECTUAL DISABILITY to normal. Holoprosencephaly is associated with CHROMOSOME ABNORMALITIES.
It is used as an oxidizing and bleaching agent and as a disinfectant. (From Grant & Hackh's Chemical Dictionary, 5th ed)
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.
Characteristics or attributes of the outer boundaries of objects, including molecules.
A partial denture attached to prepared natural teeth, roots, or implants by cementation.
Muscles arising in the zygomatic arch that close the jaw. Their nerve supply is masseteric from the mandibular division of the trigeminal nerve. (From Stedman, 25th ed)
The aftermost permanent tooth on each side in the maxilla and mandible.
A paired box transcription factor that is involved in ODONTOGENESIS.
A range of methods used to reduce pain and anxiety during dental procedures.
Abnormal breathing through the mouth, usually associated with obstructive disorders of the nasal passages.
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.
Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives.
Subtotal or complete excision of the alveolar process of the maxilla or mandible. (Dorland, 28th ed)
An orthodontic method used for correcting narrow or collapsed maxillary arches and functional cross-bite. (From Jablonski's Dictionary of Dentistry),
Oral tissue surrounding and attached to TEETH.
Inflammation of the PERIAPICAL TISSUE. It includes general, unspecified, or acute nonsuppurative inflammation. Chronic nonsuppurative inflammation is PERIAPICAL GRANULOMA. Suppurative inflammation is PERIAPICAL ABSCESS.
Most common follicular odontogenic cyst. Occurs in relation to a partially erupted or unerupted tooth with at least the crown of the tooth to which the cyst is attached protruding into the cystic cavity. May give rise to an ameloblastoma and, in rare instances, undergo malignant transformation.
A clinically and genetically heterogeneous group of hereditary conditions characterized by malformed DENTAL ENAMEL, usually involving DENTAL ENAMEL HYPOPLASIA and/or TOOTH HYPOMINERALIZATION.
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.
The use of a layer of tooth-colored material, usually porcelain or acrylic resin, applied to the surface of natural teeth, crowns, or pontics by fusion, cementation, or mechanical retention.
Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group.
Coloring, shading, or tinting of prosthetic components, devices, and materials.
Techniques used for removal of bonded orthodontic appliances, restorations, or fixed dentures from teeth.
Inorganic compounds that contain aluminum as an integral part of the molecule.

Effects of maternal acetazolamide treatment on body weights and incisor development of the fetal rat. (1/1014)

The incisor development of fetal rats on gestation day 19 was well correlated with their fetal weights. The number of odontoblasts in the mandibular incisors, an index of incisor development, increased more than that of the maxillary incisors with increase in fetal body weights. Maternal acetazolamide treatments were observed to suppress the mean fetal weight and to retard incisor development. A smaller incisor size, a thinner predentin layer, and fewer odontoblasts were characteristic of the acetazolamide group. There was also a good correlation between the fetal weights and the number of odontoblasts in the acetazolamide group. From these results, we postulated that the retarded incisor development of the fetal rats caused by the maternal acetazolamide treatment was related to their suppressed fetal weights. However, the regression coefficient of the fetal weights and the number of odontoblasts in the acetazolamide group was smaller than that of the vehicle control group. It may indicate that retarded incisor development in response to maternal acetazolamide treatment is to some extent independent of suppressed fetal weight.  (+info)

A modern human pattern of dental development in lower pleistocene hominids from Atapuerca-TD6 (Spain). (2/1014)

The study of life history evolution in hominids is crucial for the discernment of when and why humans have acquired our unique maturational pattern. Because the development of dentition is critically integrated into the life cycle in mammals, the determination of the time and pattern of dental development represents an appropriate method to infer changes in life history variables that occurred during hominid evolution. Here we present evidence derived from Lower Pleistocene human fossil remains recovered from the TD6 level (Aurora stratum) of the Gran Dolina site in the Sierra de Atapuerca, northern Spain. These hominids present a pattern of development similar to that of Homo sapiens, although some aspects (e.g., delayed M3 calcification) are not as derived as that of European populations and people of European origin. This evidence, taken together with the present knowledge of cranial capacity of these and other late Early Pleistocene hominids, supports the view that as early as 0.8 Ma at least one Homo species shared with modern humans a prolonged pattern of maturation.  (+info)

Scanning electron microscopy of the lateral cell surfaces of rat incisor ameloblasts. (3/1014)

Dry dissected rat incisor ameloblasts studied in the scanning electron microscope show remarkable specializations of their lateral surfaces. Four or five cycles of a change from a surface with longitudinal gutterlike folds associated with large intercellular spaces, to one with microvilli and reduced intercellular spaces, are found along the length of the lower incisor maturation zone. It is argued that these changes indicate cyclical activity in maturation ameloblasts.  (+info)

Morphological changes in periodontal mechanoreceptors of mouse maxillary incisors after the experimental induction of anterior crossbite: a light and electron microscopic observation using immunohistochemistry for PGP 9.5. (4/1014)

Ruffini nerve endings (mechanoreceptors) in the periodontal ligament (PDL) of mouse incisors were examined to elucidate whether experimentally-induced crossbites cause any changes or abnormalities in their morphology and distribution. Anterior guiding planes were attached to the mandibular incisors of 3-week-old C3H/HeSlc mice. At 3 days and 1, 2, 4, 6, and 8 weeks post-attachment of the appliance, the mice were sacrificed by perfusion fixation. Frozen sagittal cryostat sections of the decalcified maxillary incisors were processed for immunohistochemistry of protein gene product 9.5, followed by histochemical determination of tartrate-resistant acid phosphatase activity to reveal sites of alveolar bone resorption. Despite the absence of bone resorption within the lingual PDL of control mice, distinct resorption sites were seen in the respective regions of the experimental animals. Unlike the controls, many Ruffini endings showing vague and swollen contours, with unusually long and pedunculated micro-projections were observed in the affected lingual PDL of the incisors in the experimental animals with short-term anterior crossbite induction. Club-shaped nerve terminations with few, if any, micro-projections were observed in the lingual PDL of experimental animals with long-term induction, as well as in aged control mouse incisors. Differences in the distribution of Ruffini endings were also observed. These results indicate that changing the direction of the force applied to the PDL results in rapid and prolonged changes in the morphology of Ruffini-like mechanoreceptors.  (+info)

Arrested eruption of the permanent lower second molar. (5/1014)

The incidence of retention/impaction of the permanent lower second molar (M2inf) lies between 0.6/1000 and 3/1000. Therefore, the purpose of the present study was to investigate the craniofacial morphology, the frequency of dental anomalies and the inclination of the affected M2inf and the adjacent first molar in patients with arrested eruption of M2inf. The overall goal was to elucidate the aetiology of arrested tooth eruption and to present the characteristics of these patients in order to improve diagnosis and treatment planning. Radiographic material (profile radiographs and orthopantomograms) from 19 patients (nine females and 10 males; 13-19 years of age at the time of referral) were analysed. The ages of the patients when profile radiographs were taken for cephalometric analysis varied from 8 to 16 years. The study shows that this group of patients, compared with a reference group, had an increased sagittal jaw relationship (Class II). Specifically, the mandibular prognathism was less, the mandibular gonial angle smaller, the mandibular alveolar prognathism enlarged and the maxillary incisor inclination less than in the reference group. Furthermore, this group of patients had a more frequent occurrence of morphological tooth anomalies, such as root deflections, invaginations, and taurodontism. However, none of the patients with arrested eruption of M2inf had agenesis of the lower third molar. The study did not reveal an association between the degree of inclination of the M2inf and that of the first molar in the same region. The results of this investigation show that conditions such as the craniofacial morphology and deviations in the dentition are associated with arrested eruption of M2inf. Therefore, it is important to evaluate these conditions in future diagnosis and treatment planning of patients with arrested eruption of M2inf.  (+info)

The length and eruption rates of incisor teeth in rats after one or more of them had been unimpeded. (6/1014)

The eruption rate and length of all four incisor teeth in rats were measured under ether anaesthesia by recording the position of marks on their labial surfaces at 2-day intervals, using calibrated graticules in microscope eyepieces. The rats were divided into four groups and either a lower, an upper, both a lower and an upper, or no incisors were unimpeded. This paper describes the changes when the unimpeded incisors returned to the occlusion. Neither the unimpeded nor the impeded incisors simply returned to control values immediately the period of unimpeded eruption ended, but showed transient changes in their lengths and eruption rates. The results confirm that eruption rates are determined by the sum of the lengths of the lower and upper incisors, rather than by their own lengths, with longer teeth erupting more slowly. Specifically, restoring the bevel to the incisors did not slow their eruption below normal impeded rates. The slowing of the eruption of the longer of two adjacent incisors was related to the length differences of the incisors in the same jaw, not to the sum of the differences in both jaws. Contact with the contralateral incisor in the opposite jaw slowed the eruption of an incisor more than contact with the ipsilateral incisor.  (+info)

Pathological evaluation of the effects of intentional disocclusion and overloading occlusion in odontogenesis disorders in N-methylnitrosourea-treated hamsters. (7/1014)

This study compares the effects of disocclusion and overloading occlusion on dental lesions. Ten-day-old Syrian hamsters were divided into 4 groups: group I, untreated animals; group II, animals whose hemilateral incisors were disoccluded; group III, N-methylnitrosourea (MNU)-treated animals; and group IV, MNU-treated animals whose hemilateral incisors were disoccluded. The ipsilateral maxillary and mandibular incisors were repetitively cut with diamond discs. The hamster is easier to anesthetize. Animals received a 0.2% solution of MNU (10 mg/kg body weight) intragastrically twice a week for 16 wk. All the cut mandibular incisors and the MNU-treated uncut mandibular incisors showed lack of iron deposition on the enamel surface. The eruption rate was significantly higher in the cut disoccluded incisors of groups II and IV (p < 0.05) and significantly lower in the uncut overloaded incisors of groups II and IV (p < 0.05). In the cut mandibular incisors of group IV, the degree of the disturbance of odontogenesis and the atypical proliferation of odontogenic epithelium were more prominent (p < 0.02), and the dental lesions occurred earlier. Histologically, the disturbed Hertwig's epithelial sheath and the Hertwig's epithelial sheath-like transformed U-shaped part and enamel organ seemed to lead to disturbances of amelogenesis and detinogenesis as well as to atypical proliferation of odontogenic epithelium nests. Thus, this method of disocclusion of the incisors of rodents may represent a useful model for the investigation of the effects of various agents on tooth formation over a short experimental period.  (+info)

Postnatal expression of calretinin-immunoreactivity in periodontal Ruffini endings in the rat incisor: a comparison with protein gene product 9.5 (PGP 9.5)-immunoreactivity. (8/1014)

The postnatal expression of immunoreactivity for calretinin, one of the calcium binding proteins, and for protein gene product 9.5 (PGP 9.5), a general neuronal marker, was investigated in mechanoreceptive Ruffini endings in the periodontal ligament of the rat incisor. Age-related changes in the expression of these two proteins in periodontal nerves were further quantified with a computerized image analysis. At 1 day after birth, a few PGP 9.5-immunoreactive nerve fibers and a still smaller number of calretinin-positive fibers were found in the periodontal ligament: they were thin and beaded in appearance and no specialized nerve terminals were recognized. Tree-like terminals, reminiscent of immature Ruffini endings, were recognizable in 4-day-old rats by PGP 9.5-immunohistochemistry, while calretinin-immunostaining failed to reveal these specialized endings. At postnatal 7-11 days when PGP 9.5-immunostaining could demonstrate typical Ruffini endings, calretinin-immunopositive nerve fibers merely tapered off without forming the Ruffini type endings. A small number of Ruffini endings showing calretinin-immunoreactivity began to occur in the periodontal ligament at 24-26 days after birth when the occlusion of the first molars had been established. At the functional occlusion stage (60-80 days after birth), the Ruffini endings showing calretinin-immunoreactivity drastically increased in number and density, but less so than those positive for PGP 9.5-immunoreaction. The delayed expression of calretinin suggests that the function of the periodontal Ruffini endings is established after the completion of terminal formation because Ca2+, which binds to calcium binding proteins including calretinin with high affinity, plays an important role in mechano-electric transduction.  (+info)

Dental traumatic injuries may affect the teeth and alveolar bone directly or indirectly. Pulpal necrosis and chronic and apical periodontitis with cystic changes are the most common sequelae of the dental traumatic injuries, if the teeth are not treated immediately. This case report focuses on the conventional and surgical management of mandibular central incisors. A twenty-four-year-old male patient presented with pain in the mandibular central incisors. Radiographic examination revealed mandibular central incisors with dumbbell shaped periapical lesion. After root canal treatment, parendodontic surgery was performed for mandibular central incisors. After one-year recall examination, the teeth were asymptomatic and periapical lesion had healed.
The purpose of this article is to report the orthodontic treatment of a patient with extremely delayed development of the maxillary lateral incisors. At 7 years of age, the boys permanent maxillary lateral incisors had not erupted. A radiograph show
Dental epithelial stem cells are able to generate all epithelial cell types of the teeth; however, it was not yet clear whether these cells could also produce non-dental cell populations. In a recent paper published in the open access journal Cells, a team of researchers led by Thimios Mitsiadis, professor at the Institute of Oral Biology of the University of Zurich (UZH), has shown for the first time that epithelial stem cells isolated from the continuously growing incisors of young mice are indeed able to form mammary glands in female mice.. In a first set of experiments, after removing all cells of mammary origin, dental epithelial stem cells and mammary epithelial cells were directly injected into the areas where the mammary glands normally develop. The researchers used advanced genetic, molecular and imaging tools that allow the precise follow-up of the transplanted dental stem cells in the mammary gland fat pad of the animals. The results show that the dental stem cells contribute to ...
Teeth are epithelial appendages located at the entrance to the digestive tract and possess a complex morphology consisting of different arrangements, shape and number of cusps, crown size, and a manner of growth that is evolutionarily dependent on dietary habits. The exquisitely functional form of a developing tooth is the result of precise coordination between the processes of cell proliferation, differentiation and death (Salazar-Ciudad et al., 2003; Tucker and Sharpe, 2004). These processes are regulated by the sequential and reciprocal interactions between the oral ectoderm and the neural crest-derived mesenchyme, as well as other ectodermal organs (Pispa and Thesleff, 2003). Though several signaling pathways and transcription factors have been implicated in the regulation of molar crown development, relatively little is known about the regulatory mechanisms of root development. It has recently been reported that NFI-C/CTF (nuclear factor I-C/CAAT-box transcription factor) is essential for ...
The fusion of permanent teeth is a development anomaly of dental hard tissue. It may require a hard multidisciplinary approach with orthodontics, endodontics, surgery and prosthetics to solve aesthetic and functional problems. A 20-year-old Caucasian man presented to our Department to solve a dental anomaly of his upper central incisors. An oral investigation revealed the fusion of his maxillary central incisors and dyschromia of right central incisor. Vitality pulp tests were negative for lateral upper incisors and left central incisor. Radiographic examinations showed a fused tooth with two separate pulp chambers, two distinct roots and two separate root canals. There were also periapical lesions of central incisors and right lateral incisor, so he underwent endodontic treatment. Six months later, OPT examination revealed persistence of the periapical radiolucency, so endodontic surgery was performed, which included exeresis of the lesion, an apicoectomy and retrograde obturation with a reinforced
Final inclination (|95 degrees ) and free gingival-margin thickness (|0.5 mm) showed greater and more severe recession on the mandibular central incisors. Nevertheless, when comparing thickness to the final inclination, thickness had greater relevance to recession.
Introduction: Orthodontic cases managed by extraction of maxillary central incisors are very uncommon, but certain conditions necessitate their extraction. This article reports a case of adolescent boy with a history of trauma to the maxillary incisors. Patient was treated with extraction of both the maxillary central incisors followed by space closure and lateral incisors substituting for central incisors.
The dental formula for Dorudon atrox is [13] Typical for cetaceans, the upper incisors are aligned with the cheek teeth, and, except the small I1, separated by large diastemata containing pits into which the lower incisors fit. The upper incisors are simple conical teeth with a single root, lacking accessory denticles, and difficult to distinguish from lower incisors. The upper incisors are missing in most specimens and are only known from two specimens. The upper canine is a little larger than the upper incisors, and, like them, directed slightly buccally and mesially.[13] P1, only preserved in a single specimen, is the only single-rooted upper premolar. Apparently, P1 is conical, smaller than the remaining premolars and lacks accessory denticles. P2 is the largest upper tooth and the first in the upper row with large accessory denticles. Like the more posterior premolars, it is buccolingually compressed and double-rooted. It has a dominant central protocone flanked by denticles ...
Course Description:. Upper central incisor impaction has functional, esthetic and psychologic implications. Causes of the impaction can be divided in obstructive and traumatic. Among the first ones are: supernumerary teeth, odontomas and mesiodens. Among the second group are facial trauma received in the primary or early mixed dentition. In close relation as well with root dilaceration. Other less common reasons for impaction include: crowding, endocrine alterations, bone diseases, genetic conditions, extraction or ankylosis of primary incisors. The impacted upper central incisor can be classified depending on: mesio-distal position, occluso-gingival position, midline angulation, degree of root formation. If early intervention is not enough. There is the need for surgical exposure and orthodontic traction. Among possible treatment complications are: esthetic gingival sequelae, ankylosis and root resorption. Learning Objectives:. ...
Children with a full set of deciduous teeth (primary teeth) also have eight incisors, named the same way as in permanent teeth. Young children may have from zero to eight incisors depending on the stage of their tooth eruption and tooth development. Typically, the mandibular central incisors erupt first, followed by the maxillary central incisors, the mandibular lateral incisors and finally the maxillary laterals. The rest of the primary dentition erupts after the incisors.[2] Apart from the first molars, the incisors are also the first permanent teeth to erupt, following the same order as the primary teeth, among themselves. ...
Background and Objectives: Mandibular incisors anatomy presents a challenge when making endodontic access because of its small size and high prevalence of two canals and isthmus within them. The main objective of this study is to evaluate the root canal anatomy and its aberrant morphology in mandibular central incisors. Knowing the variations in canal anatomy such as two canals, presence of isthmus, type, its prevalence, and position in the mandibular central incisors, which help improve the procedure of successful root canal treatment. Materials and Methods: One hundred and twenty extracted human mandibular central incisor teeth were collected. Two different studies have been performed. Sixty teeth were studied through tooth clearing and dye penetration technique. Teeth were decalcified with 5% nitric acid, dehydrated with increasing concentrations of alcohol and rendered clear by immersion in methyl salicylate. Hematoxylin dye was inserted in access cavity and canals. The samples were ...
Background and Objectives: Mandibular incisors anatomy presents a challenge when making endodontic access because of its small size and high prevalence of two canals and isthmus within them. The main objective of this study is to evaluate the root canal anatomy and its aberrant morphology in mandibular central incisors. Knowing the variations in canal anatomy such as two canals, presence of isthmus, type, its prevalence, and position in the mandibular central incisors, which help improve the procedure of successful root canal treatment. Materials and Methods: One hundred and twenty extracted human mandibular central incisor teeth were collected. Two different studies have been performed. Sixty teeth were studied through tooth clearing and dye penetration technique. Teeth were decalcified with 5% nitric acid, dehydrated with increasing concentrations of alcohol and rendered clear by immersion in methyl salicylate. Hematoxylin dye was inserted in access cavity and canals. The samples were ...
Incisors are special kinds of teeth that can be found in some mammals, such as humans. They are the eight large flat teeth with straight edges that are at the front of a persons mouth, in between the canine teeth, which are pointed. The straight edges of the incisors are useful for biting because they cut sharply. They come together like a pair of pincers. In a human, the two teeth at the middle of each jaw are called the central incisors, and the side ones are the lateral incisors. (lateral means to the side). Some humans never grow lateral incisors or have very small ones, particularly at the top. In many mammalian herbivores (plant-eaters) these front teeth are used to cut off stems of grass and other growing things, that are then ground up by the molars at the back of the mouth. Some omnivores (animals that eat both plants and meat), like humans, have incisors like herbivores. In carnivores (meat-eating mammals) like cats, the incisors are often quite small. The canine teeth are ...
Incisors are special kinds of teeth that can be found in some mammals, such as humans. They are the eight large flat teeth with straight edges that are at the front of a persons mouth, in between the canine teeth, which are pointed. The straight edges of the incisors are useful for biting because they cut sharply. They come together like a pair of pincers. In a human, the two teeth at the middle of each jaw are called the central incisors, and the side ones are the lateral incisors. (lateral means to the side). Some humans never grow lateral incisors or have very small ones, particularly at the top. In many mammalian herbivores (plant-eaters) these front teeth are used to cut off stems of grass and other growing things, that are then ground up by the molars at the back of the mouth. Some omnivores (animals that eat both plants and meat), like humans, have incisors like herbivores. In carnivores (meat-eating mammals) like cats, the incisors are often quite small. The canine teeth are ...
The prevalence of hypodontia is reported to be between 1.5% to 10% in the permanent dentition. In the anterior teeth, maxillary lateral incisors and mandibular central incisors are the most frequently...
Previous trauma will warrant further investigation in the form of vitality testing and radiographs. Hemimandibular hyperplasia-characterized by three-dimensional enlargement of the mandible, which terminates at the symphysis. A patient may present with a reported history of allergic reaction. Smile aesthetics is also an important component of orthodontic treatment planning and should be formally assessed (Box 6.2). Increased upper incisor shown on smiling (lower panel). The overjet should be measured from the labial surface of the most prominent maxillary incisor to the labial surface of the mandibular incisors (, The normal range is for the maxillary incisors to overlap the mandibular by 2 to 4-mm vertically, or one-third to one-half of their crown height (. Skeletal class I (left), class II (middle) and class III (right) profiles. The regular use of steroid-based inhalers can result in oral candida infections on the palate, which can be made worse by the use of palate-covering removable ...
Chapter 2. Variations in Transition of Mandibular Incisors*. 2.1 Introduction The mandible precedes the maxilla in the transition of the incisors. The first deciduous tooth to be lost - the mandibular central incisor - is exfoliated about 1 year earlier than the corresponding maxillary incisor.. The tooth-containing parts of the mandible differ markedly from those in the maxilla in size, shape, and structure. Consequently, the transition of the mandibular incisors differs from that of the maxillary incisors. In the mandible less space is available for the crowns of the not-yet-erupting permanent teeth and the roots of the deciduous and permanent ones than in the maxilla. Further, the mandible does not have an interstitial growth site in the form of a midsagittal suture that can contribute to an increased transverse jaw dimension in the median plane. The aforementioned differences partly explain why the transition of incisors in the mandible varies less than that in the maxilla.. The combination ...
PowerPoint Presentation Permanent Mandibular Incisors Dr.Najdalizade MANDIBULAR INCISOR Mandibular central incisor and lateral are similar in anatomy and complement each…
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Panoramic view of the patient exhibiting the replanted maxillary left central incisor. A lytic, hypodense region is visible between the crown of the respective tooth and the titanium post. The root of the central incisor is not discernible - and seems to have been resorbed in most parts. Additional findings include non-erupted third molars in the maxilla and mandible.. ...
Buy Medesy Extraction Forceps Upper Central Incisors And Canines (2500/1) online at best price. Visit to buy all kinds of medical and dental supplies at Call us for more details at +65-6592-2415.
Hello My (almost) 3yo son is missing baby lower incisor tooth. Is this something I should be looking to take action on now or wait and see if a permanent
This case demonstrates the extraction of a failed endodontically treated maxillary central incisor and its replacement with an immediately placed and functioning implant as well as its restoration with an Integrated Abutment Crown™ showing a prosthetic technique for masking the metallic graying of thin gingival tissues from the underlying abutment.
Peg lateral incisors are an abnormality that can cause a lot of stress. Often referred to as peg teeth, those who deal with them dont face any actual health risks from the condition, but they can face a lack of confidence, uncertainty and dissatisfaction with their smile.
26 yrs old Male asked about Lower Jaw Incisors Teeth Open On Top, 5 doctors answered this and 30 people found it useful. Get your query answered 24*7 only on | Practo Consult
Before: Patient unhappy with six Upper Anterior teeth. The edges are uneven, the gumline is uneven on the two central incisors, and the color/shade is not uniform. The two lateral incisor teeth have been previously restored and are poorly shaped. After: Smile restored with 6 Upper Anterior Crowns that are properly shaped, gumline is uniform, and color/shade is the same for all 6 incisor teeth.. ...
Before: Patient unhappy with six Upper Anterior teeth. The edges are uneven, the gumline is uneven on the two central incisors, and the color/shade is not uniform. The two lateral incisor teeth have been previously restored and are poorly shaped. After: Smile restored with 6 Upper Anterior Crowns that are properly shaped, gumline is uniform, and color/shade is the same for all 6 incisor teeth.. ...
The dental pathology is very common in rabbits. The causes of these changes can be very varied, but they are invariably linked to the fact that rabbits make throughout their lives teeth of continuous growth. The dentition comprises 28 teeth, in addition to incisors, which can be seen easily, they also have the premolars and molars. Because of the anatomical features of the mouth of the rabbits, the latter are not easy to visualize. The incisors are used to cut the food while the molars and premolars are for grinding food and reduce it to little pieces. The wear of the teeth is made by chewing and by contact between teeth ...
Online Verifiable CPD / CE from the University of Birmingham School of Dentistry - for Dentists, Nurses, Hygienists, Therapists, Students and Practice managers
Interproximal dental stripping or interproximal enamel reduction (IER) was originally suggested back in the 1940s as a method of gaining space in the lower incisor region. The aim of this review was to investigate the enamel roughness resulting from IER as well as the cariogenicity of IER in orthodontic patients. The databases, PubMed, Scopus, The [read the full story…]. ...
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Recent advances in dental adhesives allow reattachment of fragments in subgingivally fractured teeth. However, success will depend on the skill of the clinician and care by the patient.
TY - JOUR. T1 - Three-dimensional evaluation of root dimensions and alveolar ridge width of maxillary lateral incisors in patients with unilateral agenesis. AU - AlRushaid, Sharifah. AU - Chandhoke, Taranpreet. AU - Utreja, Achint. AU - Tadinada, Aditya. AU - Allareddy, Veerasathpurush. AU - Uribe, Flavio. PY - 2016/12/1. Y1 - 2016/12/1. N2 - Background: The objective of this retrospective case-control study was to measure the maxillary lateral incisor root dimensions and quantify the labial and palatal bone in patients with unilateral maxillary lateral incisor agenesis (MLIA) after orthodontic treatment and compare them to non-agenesis controls using cone beam computed tomography. Methods: The labiopalatal and mesiodistal root dimensions, mesiodistal coronal dimensions, and labiopalatal bone and alveolar ridge widths of the maxillary lateral incisor were assessed on posttreatment cone beam computed tomography scans of 15 patients (mean age 16.5 ± 3.4 years, 9 females and 6 males) with ...
Objectives: To evaluate and compare the anteroposterior relationship of the maxillary central incisors to the forehead in adult white males with harmonious profiles and adult white male orthodontic patients. Methods: 101 photographs of adult white males with good facial harmony (control sample) were compared with 97 photographs of adult white males seeking orthodontic treatment (study sample). All were profile images with the maxillary central incisors and foreheads in full view. The images were imported into Adobe Photoshop™, resized and rotated to the upright head position. Reference lines were constructed to assess the anteroposterior positions of the maxillary central incisors and forehead inclinations. Results: In the control sample, 91% had maxillary central incisors positioned between the FFA point and glabella, 8% posterior to the forehead facial axis (FFA) point, and ,1% anterior to the glabella. The position of the maxillary central incisors were moderately correlated with forehead ...
The objective of this study is to explore differences in crown-to-root angulation between lateral incisors adjacent to palatally impacted canines (PICs) and lateral incisors adjacent to normally erupted canines (NECs). Orthodontic records of 100 subjects (51 with PICs and 49 with NECs) were reviewed. Crown-to-root angulations of all lateral incisors were measured manually on the final panoramic radiographs. Also, three experienced orthodontists were asked to visually inspect the morphology of the lateral incisors on the panoramic radiographs. A mixed model was used to test the difference in crown-to-root angulation of the lateral incisor between the experimental and the control groups. The association between the examiners observations and the presence of a canine impaction was assessed by means of a chi-square test. All analyses were performed at the 0.05 level of statistical significance. A significant (p = 0.009) difference of 2.3° in crown-to-root angulation was found between groups. Also, 66.7%
0070]An impression of a polycarbonate maxillary right central incisor crown (No. 100, available from 3M ESPE Dental Products, St. Paul, Minn.) was made using IMPRINT II vinyl polysiloxane impression material (available from 3M ESPE Dental Products, St. Paul, Minn.). The polycarbonate crown was then removed from the set impression material to provide a mold for forming the solid curable malleable solid crown. Approximately 5-millimeter long slits were cut through the base of the mold (the marginal edge of the crown) on opposite sides along the mesial-distal line using a razor blade. After the dental composition of Preparative Example 1 was heated in an oven at approximately 80° C. for approximately five minutes, the mold was filled with the dental composition. The base of the filled mold was then pressed against a flat surface to provide a molded solid curable malleable crown with a flat base. Excess dental composition was trimmed from the filled mold using a razor blade. The filled mold was ...
The rationale of pediatric endodontics is to preserve a primary tooth in the arch till its permanent counterpart replaces it. A thorough knowledge of the internal anatomy of primary teeth is essential for complete debridement and efficacious endodontic treatment of these teeth. Undetected or missed root canals can leave dormant bacteria in the root canal, thus hampering the success of pulpectomy. Very few studies in literature describe the comprehensive anatomy of primary maxillary central incisors. Existing literature describes the root canal anatomy of these teeth as a single, round, oval or triangular root canal. Variations in the root canals of the primary maxillary central incisors have not been reported. Our case report illustrates a unique case of primary maxillary central incisors with bifurcated root canals and its subsequent endodontic treatment.. ...
Most childrens permanent teeth erupt on a fairly predictable schedule. Sometimes, though, one or more teeth might not develop as they should - or at all.. These absent teeth pose functional problems for chewing and hygiene, which can affect long-term dental health. But they can also have a disruptive effect on an otherwise attractive smile if the missing teeth are the upper lateral incisors in the most visible part of the smile.. You normally find this pair of teeth on either side of the upper central incisors (the two front-most teeth). On the other side of the lateral incisors are the canine or eye teeth, known for their pointed appearance. Without the lateral incisors, the canines tend to drift into the space next to the central incisors. This can produce an odd appearance even a layperson will notice: only four teeth where there should be six!. Its possible to correct this abnormality, but it will take time and expense. The first step is usually to move the teeth in the upper jaw with ...
A 58-yr-old woman was scheduled to undergo upper lobectomy of the right lung. The preoperative visit by an anesthesiologist revealed that her upper incisors (numbers 7-9) were mobile, even with a light touch, and her other upper teeth, with the exception of number 4, were dentures. The patient was informed that her incisors could be damaged during laryngoscopy and tracheal intubation, and verbal consent was obtained for possible damage, but she also requested that we make our best effort to spare her incisor teeth. In the operating room, general anesthesia was induced with intravenous propofol supplemented with fentanyl. After muscle relaxation was obtained with intravenous vecuronium, direct laryngoscopy was performed with a Macintosh blade. On the first attempt, approaching from the right of her incisor teeth, her tongue could not be appropriately displaced leftward because her loose upper incisors prohibited liberal use of the laryngoscopic blade. Only a part of glottis could been seen ...
Read a root canal case study from Huddersfield Endodontics, providers of root canal treatments. Currently accepting referrals - call 01484 654326 today.
Researchers identify a molecular mechanism that controls the precise patterning of enamel formation on incisor teeth. Mouse incisors are covered with enamel on the side closest to the lip while the other side remains enamel-free. This irregular distribution of enamel helps keep the cutting edges of the incisors very sharp. While it is well established that ameloblasts secrete enamel, the molecular signals regulating asymmetric ameloblast differentiation from the underlying dental epithelium are not well understood.
TY - JOUR. T1 - Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions. AU - Huang, Haw Ming. AU - Ou, Keng Liang. AU - Wang, Wei Nang. AU - Chiu, Wen Ta. AU - Lin, Che Tong. AU - Lee, Sheng Yang. PY - 2005/10. Y1 - 2005/10. N2 - The aim of this study was to investigate fracture patterns occurring when a human upper central incisor is subjected to impact loadings at various angles. A two-dimensional finite element (FE) model of the maxillary incisor and surrounding tissues was established. The structural damping factor for the tooth was then calculated and assigned to the model. Dynamic FE analysis was performed to stimulate the associated impacts. Time-dependent traumatic forces at 0°, 45°, and 90° labially to the long axis of the tooth were applied to the model. Von Misess equivalent stress contours within the FE models were calculated. Our results indicated that tooth damping lagged behind peak stress by 0.05 ms. In addition, we found ...
This article reports the treatment of lateral incisor agenesis in a young patient. Treatment was performed with a mini-implant and a temporary crown. Radiographic and clinical follow up for one year d...
Trimming of incisor teeth is only necessary due to poor dental conformation. It is not ever required as a routine procedure in camelids since incisors will wear down naturally during grazing in animals with normal dental conformation. Overgrowth of incisors can occur if the bottom jaw extends out beyond the upper jaw so that the incisors do not touch the dental pad and wear during grazing. It can also occur if the incisor teeth are set at a flatter angle such that they again do not meet the dental pad. Assessment of whether or not the incisor teeth require trimming is best made by a vet who can trim the incisors under sedation to minimise the stress occurring to the animal during trimming. It is important to ensure that not too much tooth is removed as that can result in exposure of the pulp canal that will be painful and may lead to infection in the tooth roots. Use of some imported dental trimming devices by untrained personnel may result in inappropriate trimming and sharp edges that cause ...
Early childhood caries (ECC) causes premature loss of primary maxillary anterior teeth that hampers the childs growth and adversely affects psychology. Aesthetic restoration of the lost primary tooth aids in speech, mastication and in overall well being of the child. Fixed functional space maintainers, Gropers appliance does not need the cooperation of the child patient and hence more successful in maintaining the aesthetics as well as preserving the arch length. Minimum amount of palatal coverage by the appliance also increases its acceptance. The main purpose of the article was to restore the speech and appearance of a 4 year old child due to aesthetic rehabilitation of maxillary anterior teeth thereby restoring the confidence. ...
Parenting tips for infant teething are a great source of information for anyone trying to cope with the difficult period of teeth eruption. There could be long sleepless nights when the child fusses, whines or cries, days when he or she refuses to eat, sobbing and chewing at every object that falls at hand. How can one help the infant better pass over this stress? The solution to such a question will also be the cure for the parents exhaustion.. First of all, infant teething starts with the eruption of the lower front teeth, so it is there that you should look for swollen red gums. The event occurs somewhere between six and ten months of age but it is may also happen that the process should start sooner like at three, four or five months. The lower incisors are followed by the upper middle ones, and these are the most difficult stages to go over with, since the rest of the teeth will erupt more slowly, bothering less both infant and parents.. Temperature is among the most alarming infant ...
Conventional multibrackets appliance showed the highest incisal position variations over treatment, but the differences among various groups were not significantly different. - Science - Displacement in root apex and changes in incisor inclination affect alveolar bone remodeling in adult bimaxillary protrusion patients: a retrospective study (Head & Face Medicine)
Symptoms. The disease or anomaly is localised to small, restricted geographical regions and solely affects children who have grown up on the spot; but a high ;1 percentage of them are attacked. Only the permanent teeth are affected, the deciduous teeth very rarely. In the main the teeth retain their shape. The changes are of two kinds, which must be kept quite separate. In the first place the enamel in spots or more diffusely loses its normal translucence and becomes turbid, whitish, with a tone that recalls chalk or unglazed paper (mottled). This change is already observable at the eruption of the tooth. In the second place, after eruption a dark, pigmentary substance is deposited in the defective enamel (stained). The colour may vary in intensity, from yellow via brown to black. The coloured areas are arranged in irregular patches or more regular transversal bands, and are mostly localised to the labial surfaces of incisors and canines, that is to say the areas exposed to the light (Fig. I). ...
Mandible was the largest bone of the skull. It was a single bone and consisted of two halves that articulated cranially at intermandibular symphysis. The mandible lodged all the lower teeth. The body was concave dorsoventrally and presented three alveoli for incisors and a large alveolus for canine in each half of the mandible. The labial surface was more extensive than lingual surface. The symphaseal surface faced each other and formed intemandibular symphysis. It was rough and irregular. The rami were right and left and were symmetrical. Each ramus was flattened from side to side. The two rami diverge to form a large
Simplified patient-specific models: A cone-beam computerized tomography scan projection of a maxillary central incisor region was obtained (a), the outline of t
The age of the ox or cow is told chiefly by the teeth and less perfectly by the horns. The temporary teeth are in part through at birth, and all the incisors are through in twenty days; the first, second and third pairs of temporary molars are through in thirty days; the teeth have grown large enough to touch each other by the sixth month; they gradually wear and fall in eighteen months; the fourth permanent molars are through at the fourth month; the fifth at the fifteenth; the sixth at two years. The temporary teeth begin to fall at twenty-one months, and are entirely replaced by the thirtyninth to the forty-fifth month. The development is quite complete at from five to six years. At that time the border of the incisors has been worn away a little below the level of the grinders. At six years, are beginning to wear, and are on a level with the incisors. At eight years, the wear of the first grinders is very apparent. At ten or eleven years, used surfaces of the teeth begin to bear a square ...
Striking differences between carnivores and herbivores are seen in these organs. Carnivores have a capacious simple (single-chambered) stomach. The stomach volume of a carnivore represents 60-70% of the total capacity of the digestive system. Because meat is relatively easily digested, their small intestines (where absorption of food molecules takes The saliva of carnivorous animals does not contain digestive enzymes. Human saliva contains the carbohydrate-digesting enzyme, salivary amylase. This enzyme is responsible for the majority of starch digestion. The dentition of herbivores is quite varied depending on the kind of vegetation a particular species is adapted to eat. Although these animals differ in the types and numbers of teeth they possess, the various kinds of teeth when present, share common structural features. The incisors are broad, flattened and spade-like. Canines may be small as in horses, prominent as in hippos, pigs and some primates (these are thought to be used for ...
Dr. Holliday took a LOT of detailed notes on her mouth issue. Every incisor is worn down, almost to pulp exposure, she has a broken canine on the upper jaw and the lower jaw has a canine that has root exposure all the way to the end almost. Her lip has been torn (and healed) from its proper position and is sort of dangling there. Did she skid face first across the road? Did she fight and get her lip torn? Not sure. My vote is on face first across the road. Her incisors are worn…she has broken teeth…and her lip and gums are degloved in a sense. But, we dont really know…we can only assume. However, how do we fix it? Not entirely sure, to be honest. Sure, you can go chopping away and resew and repin…but, do we NEED to? Dr. Holliday is researching this. Usually, if the degloving is within 24 hours, you do go in surgically and repair. However, this thing is long gone and healed. So, what now? Ill keep you updated ...
Long-eared jerboa tail length is 150 to 162 mm, body length is from 70 to 90 mm. The tail is covered with short hairs that are similar in color to the rest of the body except for the terminal tuft, which is white and black. Upper parts are reddish yellow to a light russet color. The belly is white. The hind foot is 40 to 46 mm in length, with five digits. The two lateral digits are shorter than the three central ones. The central metatarsals are fused for a small distance. The feet are covered with tufts of bristly hairs. Long-eared jerboas have ears that are 1/3 longer than their heads. The incisors are thin and white. A small premolar can be found on each side of the upper jaw. Females have eight mammae. (Nowak, 1999). ...
Lower anterior anatomy - studies on lower anterior teeth and the anatomy for root canal therapy. Mandibular incisor anatomy for RCT
This excellent article reports the results of a comparative study of the teeth of the Jivaro Two groups were selected, confined only to the males of varying ages from pre-adolescent to adulthood, selected at random.
A more recent option for treating congenitally missing lateral incisors, and one that currently is recommended often, is the single-tooth implant. Over the past several years, the predictability and long-term success rates of implants have made them an obvious restorative choice,5 especially when teeth adjacent to the space are healthy, of normal size and shape, and unrestored.8,9 Furthermore, placement of an implant may provide a functional stimulus to help preserve bone and prevent resorption.10 However, when choosing the single-tooth implant as a restorative op- tion, several factors must be taken into ac- count such as growth considerations, space requirements, and site development.3 Because an implant acts essentially like an ankylosed tooth, any vertical alveolar growth and eruption of teeth would cause a discrepancy between the gingival margin of the natural tooth and the implant. Therefore, implant placement should occur only after growth has been completed,2-4 and it has been suggested ...
Soon the kids came filing in and plopped themselves down on the floor. Once they had settled down, Melly started talking. Oh my gosh! I never realized what a talker she is! Or maybe she just talks a lot when she is talking about me. Actually, I think thats it. She knows a lot about me and about other capybaras so shes got a bunch of material to cover. These kids knew a tremendous amount too! Melly was shocked when they knew the words amphibian and incisors. Two good words. Im not an amphibian but I am amphibious and I have great big rodent incisors. Even though Melly told the kids that my teeth are razor sharp, no one was too afraid to pet me.. Did you notice that Melly is wearing a tshirt with my photo on it? Normally she wears her 3-Capybaras shirt but I am proud that she finally wore one of me.. ...
Before: Patient needs Upper Arch Rehabilitation. Presents with Upper Anterior teeth that are stained, incisal edges (tooth edge) are worn down and chipped, and gumline recession is present. After: Smile restored with placement of 8 Upper All Porcelain Crowns (Caps). Gumline and incisal edges are now uniform. Patient now has longer, better shaped teeth to enhance the smile line and aid in chewing/biting function.. ...
This audiovisual case report guides dentists through an orthodontic alignment and extrusion of a periodontally involved lateral incisor in preparation for replacement with an implant.
Results: The results showed a decrease in mean dental fracture strength of 76.53 N in teeth with feathered incisal edge preparations, and 102.82 N for those with palatal chamfers when compared with nonprepared teeth, whereas the preparation with a butt joint showed no significant difference compared to nonprepared teeth (p = 0.37). Ceramic fractures occurred more frequently in the chamfer type than feathered incisal edge design ...
I had a RC (upper central incisor) done in the early 80s and have recently (last 15 years) experienced pain when eating/drinking hot liquids. I avoided them and the symptoms largely vanished. However, more recently (last 2 years), I have pain on pal
عنوان کنگره : دوازدهمین کنگره بین اللملی دندانپزشکی کودکان, ایران,تهران,1392/05/30-1392/06/01 ...
Luis Ernesto Arriola-Guillén, Ivy Samantha Valera-Montoya, Yalil Augusto Rodríguez-Cárdenas, Gustavo Armando Ruíz-Mora, Aron Aliaga-Del Castillo, Guillerme Janson. Mordida aberta. Incisivo. Comprimento radicular. TCFC.. Keywords: Mordida aberta. Incisivo. Comprimento radicular. TCFC.. How to cite: Arriola-Guillén LE, Valera-Montoya IS, Rodríguez-Cárdenas YA, Ruíz-Mora GA, Aliaga-Del Castillo A, Janson G. Incisor root length in individuals with and without anterior open bite: a comparative CBCT study. Dental Press J Orthod. 2020 July-Aug;25(4):23.e1-7.. Tuesday, October 20, 2020 08:58 ...
This patient was told by his dentist that his lower front broken incisor tooth could not be saved, and only option was to extract it. He came to me for a 2nd opinion. This is how I saved his tooth:. ...
The World Oral Literature Project, Voices of Vanishing Worlds, was started at the University of Cambridge in 2009 and is a global initiative for the documentation and dissemination of endangered oral literature. In order to ensure that this literature does not disappear before it has been recorded, the project supports local communities as well as research projects and investigations which aim at preserving forms of oral literature. The results are available on the web in audio as well as video formats ...
The types of incisor are: maxillary central incisor (upper jaw, closest to the center of the lips) maxillary lateral incisor ( ... In humans, the incisors serve to cut off pieces of food, as well as in the grip of other food items. Arrangement of incisors in ... In cats, the incisors are small; biting off meat is done with the canines and the carnassials. In elephants, the upper incisors ... The rest of the primary dentition erupts after the incisors. Apart from the first molars, the incisors are also the first ...
... (71°40′S 163°41′E / 71.667°S 163.683°E / -71.667; 163.683Coordinates: 71°40′S 163°41′E / 71.667°S 163.683°E ... "Incisor Ridge". Geographic Names Information System. United States Geological Survey, United States Department of the Interior ... This article incorporates public domain material from "Incisor Ridge". Geographic Names Information System. United States ...
... may refer to: Mandibular central incisor Mandibular lateral incisor This disambiguation page lists articles ... associated with the title Mandibular incisor. If an internal link led you here, you may wish to change the link to point ...
... incisor procumbency refers to the orientation of the upper incisor, defined by the position of the cutting edge of the incisor ... Proodont incisors have the cutting edge in front of the vertical plane, orthodont teeth have it perpendicular to the plane, ... opisthodont incisors have it behind the plane, and hyper-opisthodont teeth have the cutting edge even behind the back of the ... alveolus of the incisor. Phyllotini are mostly opisthodont, but Auliscomys and Galenomys are orthodont and have sometimes even ...
... maxillary lateral incisor and that of the permanent maxillary lateral incisor. The maxillary lateral incisors occlude in ... The primary lateral incisor crown is wider mesiodistally than the permanent tooth and the roots of the primary lateral incisors ... The maxillary lateral incisor resembles the maxillary central incisor, but is smaller in every dimension aside from root length ... Compared to the maxillary central incisor, the maxillary lateral incisor has more rounded mesial and distal incisal angles. The ...
... mandibular central incisor and that of the permanent mandibular central incisor. The mandibular central incisors are usually ... It is mesial (toward the midline of the face) from both mandibular lateral incisors. As with all incisors, its function ... and the right permanent mandibular central incisor is known as "41", and the left one is known as "31". The central incisors ... the permanent mandibular central incisors are designated by a number. The right permanent mandibular central incisor is known ...
... mandibular lateral incisor and that of the permanent mandibular lateral incisor. In the universal system of notation, the ... the permanent mandibular lateral incisors are designated by a number. The right permanent mandibular lateral incisor is known ... The mandibular lateral incisor is the tooth located distally (away from the midline of the face) from both mandibular central ... As with all incisors, their function is for shearing or cutting food during mastication, commonly known as chewing. There are ...
Trauma to primary incisors resulting in discolouration of permanent incisors. Administration of tetracycline during pregnancy ... Molar incisor hypomineralisation (MIH) is a type of enamel defect affecting, as the name suggests, the first molars and ... White spot lesions are also uncommon on incisors, hence ruling out dental caries. Fluorosis, which can result from an intake of ... MIH often presents as discolouration on one to four affected permanent molars and the associated incisors. The enamel of the ...
... the maxillary incisors cover nearly half of the mandibular incisors' crowns. When the maxillary and mandibular incisors do not ... The maxillary central incisors contact each other at the midline of the face. The mandibular central incisors are the only ... On the other hand, when the contact of the mandibular incisors to the maxillary incisors is near or completely on the gingiva, ... It is located mesial (closer to the midline of the face) to the maxillary lateral incisor. As with all incisors, their function ...
... (MLIA) is lack of development (agenesis) of one or both of the maxillary lateral incisor ... The condition is bilateral if the incisor is absent on both sides or unilateral if only one is missing. It appears to have a ... By the age of 8 or 9, the permanent maxillary lateral incisors erupt as the root continues to mineralize until the age of 11 ... The first set of maxillary lateral incisors (primary teeth) develop between the 14th and the 16th week, while being inside the ...
... (or, more simply, shovel incisors) are incisors whose lingual surfaces are scooped as a consequence of ... There is a spectrum of the degree of shoveled-ness, ranging on a scale from 0 to 7 of spatulate incisors to shoveled incisors. ... The proposed explanation for this at the time was that shovel-shaped incisors were stronger than non-shovel shaped incisors, ... It was theorized that positive selection for shovel shaped incisors over the spatulate incisors are more commonly found in ...
Maxillary central incisor • Maxillary first molar • Maxillary first premolar • Maxillary lateral incisor • Maxillary second ... Mandibular central incisor • Mandibular first molar • Mandibular first premolar • Mandibular lateral incisor • Mandibular ... Shovel-shaped incisors • Sialogram • Signal • Simon Hullihen • Sinodonty and Sundadonty • Sinus-lift procedure • Smiley's Good ... Incisor • Inferior alveolar nerve • Inflammatory papillary hyperplasia • Ingestion • Inlays and onlays • Inner enamel ...
"". 2009-03-16. Retrieved 2010-09-04. "Press Releases: UWB Alliance to Lead Industry Growth and Drive ...
9,767 feet (2,977 m) Incisor Lake, 45°08′05″N 109°54′47″W / 45.13472°N 109.91306°W / 45.13472; -109.91306 (Incisor Lake), ... "Incisor Lake". Geographic Names Information System. United States Geological Survey, United States Department of the Interior ...
"". 16 March 2009. Archived from the original on 16 September 2018. Retrieved 4 September 2010. "Bluetooth ... "Simon Stenhouse - Leech Attempt" (PDF). November 2009. Archived from the original (PDF) on 24 September 2015. ...
"Incisor Wireless News: What to make of the Bluetooth SIG / WiMedia merger?". 2009-03-16. Retrieved 2011-12-02. ... "Incisor Magazine November 2009" (PDF). Archived from the original (PDF) on 2015-09-24. Retrieved 2011-12-02. " ...
Martin, Incisor, Johnson, Clark, and Sundial seen from Marmot Pass Mt. Deception (left), The Needles centered, Tyler Peak along ... "The Incisor, Washington". Retrieved 2022-02-14. "Mount Walkinshaw, Washington". Retrieved 2022- ...
Orange-yellow incisor teeth. Tail, dark above and yellowish below. Body fur spiny. Rounded head with a blunt nose, with small ...
The canines were incisor-shaped. The protocone and the hypocone were almost identical, with an oblique and elongated central ...
Maxillary lateral incisor 1.7% Maxillary second premolar 1.5% Mandibular central incisor 0.3% Mestrović SR, Rajić Z, Papić JS ( ... Its polymorphic variant may be associated with hypodontia such as missing lower incisors or in a more severe form of agenesis ... When moving the canine into the space of the lateral incisor, the dimensions of the canine, root position and gingival position ... In each jaw, four morphological sites were identified (incisors, canines, premolars and molars). The tooth at the end of each ...
The maxillary lateral incisor is the tooth located distally from both maxillary central incisors of the mouth and mesially from ... The mandibular lateral incisor is the tooth located distally from both mandibular central incisors of the mouth and mesially ... Incisors are divided further into central and lateral incisors. Among premolars and molars, there are first and second ... Though similar, there are some minor differences between the primary and permanent incisors. The maxillary central incisors are ...
They have chisel-like incisor. The ricefield rat is between 304-400 mm long with a tail length of 140-200 mm and a skull length ...
Their dental formula is 3,1,3,2/3,1,3,2. The first incisor is enlarged. The lateral incisors and first premolars are like ...
... small incisors; and thickened rim along the posterior margin of the squamosal". In dorsal view, size of the skull is more ...
... large incisors; bushy eyebrows, tending to meet across nose; large eye sockets, but deep-set eyes; beaked or flat nose; strong ...
The incisor is long and broad. In J. magna, the only known incisor (the lower left, I1) is broken into two pieces. At the base ... only the base of the right incisor (1I) is known, and the length of the two incisor sockets together is 6.73 cm (2.65 in). J. ... the incisors were angled instead of pointing straight down), since moving force through a curved body (the incisor) would ... monesi has a prodigious incisive foramen, corresponding to the blood vessels connected to the incisor. The incisor of J. monesi ...
... one with the incisor and m2; and one with the incisor, p4, m1, and m2-an isolated lower incisor, and an isolated m2. It was ... The surfaces of the incisor are very flat, but there are small, irregular striations in the enamel along the length of the ... Lagrivea was a large tree squirrel with flat lower incisors and a large, triangular fourth lower premolar (p4). Each of the ... In the mandible, the diastema (gap) between the incisors and the cheekteeth (premolars and molars) is relatively deep. The ...
KCNJ13 Solitary median maxillary central incisor; 147250; SHH Somatostatin analog, resistance to; 102200; SSTR5 Sorsby fundus ...
Origin: Mandible inferior to incisor teeth. Insertion: Skin of chin. The marginal mandibular nerve may be injured during ...
Incisors project anteriorly. The animal is known across a wide range in Africa, but is never common. They are usually taken in ...
The CHAINWHEEL sprocket uses the new Incisor teeth profile. The look of the CHAINWHEEL should be obvious to anyone who rode ... With similar lines as the original, the Burlington is stiffer, stronger and benefits from the new Incisor teeth profile (same ... that also benefits from the new Incisor teeth profile. ...
Sign up for our semimonthly newsletter, Incisor.. You are just a click away from having Incisors award-winning content ... Tens of thousands of oral health professionals count on Incisor to keep their teams up to date on dental science, regulatory ... Sign up for our semimonthly newsletter, Incisor. ...
Overgrown incisor teeth, rabbit. Severely overgrown incisor teeth in a rabbit. If younger animals, the cause (eg, brachygnathia ...
The supernumerary incisors in K5-Ikkβ mice were found to phenocopy extra incisors in mice with mutations of Wnt inhibitor, Wise ... Excess NF-κB induces ectopic odontogenesis in embryonic incisor epithelium View in MDC Repository ... Apoptosis that is normally observed in wild-type incisor epithelium was reduced in K5-Ikkβ mice. ... K5-Ikkβ mice showed supernumerary incisors whose formation was accompanied by up-regulation of canonical Wnt signaling. ...
Choose from 9 Incisor Root Canal Clinics in Wiltshire with 8 verified patient reviews. ... Incisor Root Canal prices from £251 - Enquire for a fast quote ★ ... Incisor Root Canal prices from £251 - Enquire for a fast quote ★ Choose from 9 Incisor Root Canal Clinics in Wiltshire with 8 ... Incisor Root Canal Wiltshire. All 9 Incisor Root Canal Clinics in Wiltshire. ...
Fitting a single central incisor crown is one of the toughest job in dentistry. If you ask any dentist which job he or she ... Why is the single central incisor crown such a tricky dental procedure?. Your two front teeth are the first thing people see ...
54-year-old male was referred to a specialist prosthodontic clinic for the management of the maxillary right central incisor, ... Replacement of a Maxillary Right Central Incisor Using an Immediate Restoration Protocol - Clinical Case Report - Home. Home ... Replacement of a Maxillary Right Central Incisor Using an Immediate Restoration Protocol. Christopher Evans, Adam J Rosenberg ... Replacement of an Upper Right Central Incisor with a Regular Neck Implant, Restored with an All-Ceramic Crown, Cemented. ...
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Fractured 2.1 Implant preparation Palatal approach Gap filling with xenograft and healing abutment 10 weeks healing Screw provisional 3 years 6 months follow up, Smile Design
A mamelon is a bump on your incisor. Its there because of the way your teeth take shape when youre a child. As permanent ... All About Mamelons: Do Your Incisors Have Bumps?. Posted February 28, 2017. by Dr. Cornelius ...
Fracture of upper incisors. Published August 10, 2010. at 2095 × 1392 in Emergency Care For Oral and Facial Injuries ...
Tabata S, Ozaki HS, Nakashima M, Uemura M, Iwamoto H. Innervation of blood vessels in the rat incisor pulp: A scanning electron ... The rat incisor pulp was investigated by scanning electron microscopy (SEM) after connective tissue digestion and by ... The rat incisor pulp was investigated by scanning electron microscopy (SEM) after connective tissue digestion and by ... The rat incisor pulp was investigated by scanning electron microscopy (SEM) after connective tissue digestion and by ...
This case study introduces the concept of using a diode laser as another tool in the treatment of fractured maxillary incisor ... Management of subgingival fractures of incisors is difficult. ... Management of Subgingival Incisor Fractures with a Diode Laser ... The 2 central incisors had open apices with immature root development. The fractures appeared to approximate the root on the ... A 9.3-year white male presented to the office with a crown fracture of the maxillary central incisors. ET was on the playground ...
2022 Nurseslabs , Ut in Omnibus Glorificetur Deus ...
SOUZA, Juliana Feltrin de et al. Aesthetic management of molar-incisor hypomineralization. RSBO (Online) [online]. 2014, vol.11 ... Conclusion: The incisors affected by MIH should be treated to improve the child`s self-esteem and avoid negative effects on ... Introduction: Molar-incisor hypomineralization (MIH) has been challenging for clinical practice. The term refers to an enamel ... This defect may result in high sensibility, coronal destruction of the molars, aesthetic problem when incisors are affected, ...
Newly synthesized proteoglycans of rat incisors were labelled in vivo for 6h with [35S]-sulphate in order to facilitate their ... In general, the amino acid compositions of the major proteoglycans of rat incisors resembled that of bovine nasal cartilage ... Proteoglycans were extracted from non-mineralized portions (predentine) of rat incisors with 4M-guanidinium chloride and ...
Over the course of 17 months, a horse with poor body condition, periodontal infection, and pain around the mandibular incisors ...
Inverted central incisor--a case report. Journal of the Indian Society of Pedodontics and Preventive Dentistry. 2004 Jun; 22(2 ... An unusual case of inverted central incisor in a nine year old girl is reported here. The case was diagnosed as an infected ... The unerupted central incisor was placed inverted almost near the ethmoid bone. The cyst was enucleated successfully. ...
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Chris Moores memoir Incisors is a journey toward reclamation and repair of herself, her voice,. and her place in the world as ...
For removing incisors and second premolars. The narrower jaws make it easier to manipulate and its universal handle style ... For removing incisors and second premolars. The narrower jaws make it easier to manipulate and its universal handle style ...
Okawa R, Naka S, Saga K, Nomura R, Nakano K. Hypoplasia in crown of primary mandibular left lateral incisor identified in ... Okawa, R., Naka, S., Saga, K., Nomura, R., & Nakano, K. (2014). Hypoplasia in crown of primary mandibular left lateral incisor ... Okawa, R, Naka, S, Saga, K, Nomura, R & Nakano, K 2014, Hypoplasia in crown of primary mandibular left lateral incisor ... Hypoplasia in crown of primary mandibular left lateral incisor identified in infant Japanese girl. / Okawa, Rena; Naka, Shuhei ...
Molar Incisor Hypomineralisation (MIH) - An Overview Report There was a problem reporting this post. ... Molar Incisor Hypomineralisation (MIH) - An Overview. Written by John on 15 February 2022. . ... Recent data indicates that molar-incisor hypomineralisation (MIH) is a frequently - encountered dental condition worldwide. The ...
Incisor, The The Incisor. The Incisor (Mount Johnson, Sweat Spire, Gasp Pinnacle at right beyond). Photo by John Myers. ...
Incisor Studios1 year ago (1 edit) (+1). Hmm, this is really weird-- wed never heard of a bug like this. Ill be looking from ... Incisor Studios1 year ago(+2). Thank you so much for the video, you were so kind!! Were so glad you liked it and we really ... Incisor Studios1 year ago (1 edit) (+1). Hey there, thank you! Right now, while there is an established idea of what the sequel ... Incisor Studios1 year ago(+1). Thank you for the report! Were working on an update to fix some issues like this one, and ...
The incisor and impacted or unerupted tooth involvement by a cementoblastoma is extremely rare. We present a case report of a ...
Molar Incisor Hypomineralisation (MIH) - An Overview Report There was a problem reporting this post. ... Molar Incisor Hypomineralisation (MIH) - An Overview. Written by John on 15 February 2022. . ... Recent data indicates that molar-incisor hypomineralisation (MIH) is a frequently - encountered dental condition worldwide. The ...
Q: This unusual incisor shape is most likely caused by: (A.) Syphilis(B.) Attrition(C.) Erosion(D.) Fluorosis Mini Boards ... Q: This unusual incisor shape is most likely caused by:. 2 min read ... Reviews for the National + Local Anesthesia + CSCE Dental Hygiene Boards Exams! The maxillary central incisors in this image... ...
What are lower incisors?. Interesting Alex 08/15/2022 comments off What are lower incisors?. The lower incisors are usually the ... What do incisors do?. Incisors are the squarish, sharp-edged teeth in the front of the mouth that cut foods when we bite into ... Which is incisor tooth?. The incisor teeth are at the front of the mouth and have a flat edge designed for shearing or cutting ... The incisors are the eight teeth that are most visible in the front of the mouth. There are eight incisors in total, four on ...
Wiesemüller B, Hartmut R, Henke W, 1999: Lower Incisor Shape in Callicebus and Pitheciinae. Anthropologie (Brno) 37, 3: 273-274 ... Callicebus and Pitheciinae resemble each other in the possession of slender, long lower incisors, which can be considered as a ...
  • Following similar lines, The BURLINGTON sprocket is an improved, stiffer, stronger version of its predecessor, that also benefits from the new Incisor teeth profile. (
  • With similar lines as the original, the Burlington is stiffer, stronger and benefits from the new Incisor teeth profile (same profile as the Chainwheel). (
  • The CHAINWHEEL sprocket uses the new Incisor teeth profile. (
  • Severely overgrown incisor teeth in a rabbit. (
  • This case study introduces the concept of using a diode laser as another tool in the treatment of fractured maxillary incisor teeth. (
  • Many cases involving subgingival fractures of incisor teeth can be successfully treated with excellent results with the addition of the diode laser to traditional management techniques. (
  • Over the course of 17 months, a horse with poor body condition, periodontal infection, and pain around the mandibular incisors with only fragments of teeth was investigated and radiographed before and after surgery. (
  • The lower incisors are usually the first primary teeth to come in. (
  • The incisors are the eight teeth that are most visible in the front of the mouth. (
  • The incisor teeth are at the front of the mouth and have a flat edge designed for shearing or cutting. (
  • Incisors are usually bigger in herbivores (plant eaters) and omnivores (plant and meat eaters) because they are useful for biting off pieces of plant-based foods before chewing them with the back teeth. (
  • The human mouth contains four types of teeth - incisors, molars, premolars and canines. (
  • Incisors are the squarish, sharp-edged teeth in the front of the mouth that cut foods when we bite into them. (
  • A normal adult mouth has 32 teeth, which (except for wisdom teeth) have erupted by about age 13: Incisors (8 total): The middlemost four teeth on the upper and lower jaws. (
  • Canines (4 total): The pointed teeth just outside the incisors. (
  • Modern beavers have incisor teeth with smooth enamel, while the teeth of the giant beaver were much larger up to 15 cm (6 in) long, with a striated, textured enamel surface. (
  • The skull stood out because the lower jaw is missing the two central incisors, and the tip of a stone projectile point is embedded just below where the missing teeth should be. (
  • The scans show no partial teeth or space for the roots in the jaw, which points to agenesis of the mandibular incisors, a surpassingly rare genetic condition in which the teeth never form. (
  • Although rounded protuberances referred to as mamelons are observes commonly on the crowns of newly-emerged human incisor teeth, there have been very few systematic studies of their expression. (
  • The present case report demonstrates the feasibility of closing a wide gap in the aesthetic zone by bilateral shifting of several teeth mesially, in particular a central incisor that was moved across the midline. (
  • In addition to its smaller size, the pygmy hippopotamus differs from the common hippopotamus ( Hippopotamus amphibius ) in being nocturnal and less aquatic and in having a rounder head with the eyes set to the sides, less webbing between the toes, and only one pair of lower incisor teeth. (
  • A dental bridge for front teeth may require two crowns on either side since the biting pressure on the front incisors is so great. (
  • Horses have 36-44 teeth, 12 incisors, 24-8 premolars and molars and males have 4 canines. (
  • III malocclusions, the maxillary posterior teeth exhibited smaller palatal inclination than normal, while the mandibular incisors and second molars presented greater lingual inclination. (
  • It was concluded that the analysis of inclinations of all crowns of both dental arches in Class III malocclusions, compared with normal standards, evidenced the presence of natural compensation for maxillary posterior teeth, with reduced palatal inclination, as well as increased lingual inclination in mandibular incisors. (
  • Incisors are the two front and two bottom teeth in the mouth. (
  • A healthy 54-year-old male was referred to a specialist prosthodontic clinic for the management of the maxillary right central incisor, tooth 11. (
  • Subgingival tooth fractures of maxillary incisors start a cascade of questions in the clinician's mind. (
  • A girl aged 0 years 11 months was referred to our clinic by a local pediatrician for examination of a missing tooth crown of a primary mandibular left lateral incisor. (
  • Our intraoral examination showed that seven primary incisors had emerged into the oral cavity, while no tooth crown was noted in the region of the primary mandibular left lateral incisor. (
  • The incisor and impacted or unerupted tooth involvement by a cementoblastoma is extremely rare. (
  • Which is incisor tooth? (
  • This gentleman broke a lower incisor and the tooth could not be fixed. (
  • This course will emphasize the four criteria required for successful lateral incisor replacement and the three key tooth positions for optimal cuspid substitution treatment. (
  • Over 90% of all incisors displayed mamelons, although the pattern of expression differed significantly between maxillary and mandibular arches, tooth types and ethnic groups. (
  • However, since the diVerent tooth groups (incisor, premolar, and molar) have diVerent functions, they could exert diVerent eVects on the mandibular condyle. (
  • Before: Patient needs a Single Tooth Replacement of one Upper Central Incisor. (
  • For removing incisors and second premolars. (
  • Results The density of the trabecular bone of the mandibular condyle was signiWcantly associated with the presence of the molars, but not the incisors or premolars. (
  • This number includes eight incisors, four canines, eight premolars and twelve molars. (
  • Values distribution for incisors highlighted the significant concentration of maxillary incisors in the area of positive values, compared with a very expressive concentration of mandibular incisors in the area of negative values. (
  • Introduction: Molar-incisor hypomineralization (MIH) has been challenging for clinical practice. (
  • Forceps for lower incisor and root universal forceps for lower jaw with thin blades. (
  • Fitting a single central incisor crown is one of the toughest job in dentistry. (
  • Why is the single central incisor crown such a tricky dental procedure? (
  • IMSEAR at SEARO: Inverted central incisor--a case report. (
  • An unusual case of inverted central incisor in a nine year old girl is reported here. (
  • The unerupted central incisor was placed inverted almost near the ethmoid bone. (
  • The maxillary central incisors in this image. (
  • V. Arikan , Z. K. elikten , S. Sari (2014) "Treatment of horizontal root fractured central incisors and 30 months follow up: 2 case reports", European Journal of Paediatric Dentistry , 15(2 suppl), pp199-202. (
  • Here, we describe a case of complicated fracture of the maxillary left immature permanent central incisor, which was treated endodontically followed by esthetic reattachment of the fractured fragment using the glass fiber post. (
  • A three-mamelon form was most common on maxillary and mandibular central incisors in both ethnic groups, but different expressions were observed on lateral incisors. (
  • A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. (
  • As the key component of the revised comprehensive treatment plan, the right maxillary central incisor was moved into the position of the left central incisor. (
  • Thus, the feasibility of relocating a maxillary central incisor across the midline has been demonstrated previously. (
  • The accident traumatized the maxillary left central incisor, requiring partial pulpotomy. (
  • The crown of the injured left central incisor was shorter than the right one. (
  • Comparison between Obando´s anthropometric formula and Mondelli´s formula to estimate central incisor width. (
  • Objective: to compare Mondelli's formula with Obando's anthropometric formula in order to determine the mesiodistal width of maxillary central incisor. (
  • The mesiodistal width of maxillary central incisor was measured. (
  • Correlations and differences between estimates of both formulas and the actual mesiodistal width of the central incisor were estimated. (
  • Conclusion: Obando's formula estimated more accurately the mesiodistal width of the central incisor in comparison to Mondelli's formula in the Peruvian population. (
  • Conclusión: la formula de Obando logró estimar de manera más precisa el ancho mesio-distal del incisivo central en comparación a la fórmula de Mondelli en población peruana. (
  • Congenital midline defects, such as septo-optic dysplasia (de Morsier syndrome), midline facial clefts, or single central incisors, may be accompanied by varying anterior pituitary deficiencies. (
  • The milder craniofacial characteristics of HPE include microcephaly, midface flattening, hypotelorism (closely spaced eyes), flat nasal bridge, and single maxillary central incisor. (
  • She presents gingival recession affecting her right lower-central incisor. (
  • [ 37 ] Newborns with congenital hypopituitarism (defined as deficiencies of all anterior pituitary hormones) often present with midline craniofacial abnormalities (eg, single central maxillary incisor, cleft lip or palate , optic hypoplasia), hypoglycemia , blindness, micropenis , and hyperbilirubinemia. (
  • On either side of the incisors are the sharp canines. (
  • Its incisors are arranged in a "gentle arch" and its signature upper canines are serrated on both edges, the study authors wrote. (
  • This includes eight incisors, four canines and eight molars. (
  • The structure was speculated to be the root of the primary mandibular left lateral incisor, which was in the developmental stage. (
  • After the cuspid is substituted into the lateral incisor position, how do you interact with the restorative dentist as the final esthetic and functional result is restored? (
  • The left maxillary lateral incisor was in palatoversion, possibly due to the unerupted left maxillary canine. (
  • With EXCEPTIONAL preservation and detail, this UPPER incisor fossil tusk comes from the prehistoric GIANT BEAVER, Castoroides . (
  • Food manipulation was assisted by an elongate, procumbent lower incisor that occluded with three sharply-edged upper incisors, as in living phalangeriform marsupials. (
  • Case report: Patients aged 11 and 12 years-old attended to the clinics of the School of Dentistry (Sao Paulo State University - Unesp) complaining about the appearance of incisors due to the presence of opacities on the labial surface. (
  • The incisor disc handpiece allows an accurate work on over-long incisors and is ideal for correcting incisor abnormalities. (
  • The snout is long with the nasals projecting well forward of the incisors and with a strong antorbital fossa for facial muscles. (
  • If there's genetic continuity between Paleoamericans with more Australo-Melanesian morphology and modern Amerindians with more 'Mongoloid' morphology, then it strengthens the idea that the so-called 'Mongoloid' phenotype in Asia (facial flatness, EDAR+, shovel-shaped incisors) is product of a back migration from America in the Late Pleistocene-early Holocene. (
  • laquelle lors d'un traumatisme facial a ete enfouie dans le vestibule narinaire en conservant son pedicule vasculo-nerveux. (
  • Tens of thousands of oral health professionals count on Incisor to keep their teams up to date on dental science, regulatory issues, practice management strategies, and continuing education. (
  • We have all the information you need about public and private dental clinics that provide incisor root canal in Wiltshire. (
  • Recent data indicates that molar-incisor hypomineralisation (MIH) is a frequently - encountered dental condition worldwide. (
  • Q: This unusual incisor shape is most likely caused by: (A.) Syphilis(B.) Attrition(C.) Erosion(D.) Fluorosis Mini Boards Reviews for the National + Local Anesthesia + CSCE Dental Hygiene Boards Exams! (
  • At treatment completion, cone-beam computed tomography (CBCT) was used to show the relative position of the relocated incisor, the incisive foramen, the nasopalatine canal, and the MPS. (
  • The 3 Piece Equine Incisor Elevator Set includes 3 stainless steel non-winged elevators (1 straight and 2 curved) as shown on the left side of the 6 pc. (
  • Objective: The aim of this paper is to report two cases in which a conservative approach was adopted using new technologies for direct restorative treatment of incisor with MIH opacities. (
  • There are eight incisors in total, four on the top and four on the bottom. (
  • Compare all the dentists and contact the incisor root canal clinic in Wiltshire that's right for you. (
  • Median inter-incisor line. (
  • Follin et al used Beagle dogs to investigate the movement of incisors as a function of animal age and median palatal suture (MPS) closure. (
  • Wiesemüller B, Hartmut R, Henke W, 1999: Lower Incisor Shape in Callicebus and Pitheciinae. (
  • One of the defining characteristics of the giant beaver was their incisors, which differ in size and shape from those of modern beavers. (
  • In general, the amino acid compositions of the major proteoglycans of rat incisors resembled that of bovine nasal cartilage proteoglycans, but the former had lower proline, valine, isoleucine, leucine, and higher aspartic acid, contents. (
  • Incisor Root Canal prices from £251 - Enquire for a fast quote ★ Choose from 9 Incisor Root Canal Clinics in Wiltshire with 8 verified patient reviews. (
  • The term refers to an enamel defect that affects permanent molars and often permanent incisors. (
  • The cases were diagnosed as MIH, presenting enamel defects on the permanent molars and incisors. (
  • The main aims of this study were to describe the nature and extent of variation of mamelon expression on permanent incisors within and between two different human populations, and to quantify the contributions of genetic and environmental influences to observed variability. (
  • Replantation of 400 avulsed permanent incisors. (
  • The aesthetic treatment of the incisors should be conservative, since the replacements of restorations are needed throughout life. (
  • III malocclusions described, especially in lower incisors, would help clinicians when compensatory treatment is considered. (
  • Isolation and partial characterization of proteoglycans from rat incisors. (
  • We present a case report of a giant cementoblastoma that involved an impacted mandibular incisor. (
  • COHEN, S. Isolation of a mouse submaxillary gland protein accelerating incisor eruption and eyelid opening in the new-born animal. (
  • Maybe the past left some sort of trace, like how humans still have body hair and incisors. (