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Surfaces which form points of contact between adjacent teeth. [2] Axial A plane parallel to the surface of a tooth. For example, if a drill bur would be inserted into a tooth from any side (proximal, vestibular, oral), the depth of the hole is defined from the axial wall of the hole (from the long axis walls (vertical surfaces bounding the ...
A cusp is an elevation on an occlusal surface of posterior teeth and canines. It contributes to a significant portion of the tooth's surface. Canines have one cusp. Maxillary premolars and the mandibular first premolars usually have two cusps. Mandibular second premolars frequently have three cusps--- one buccal and two lingual.
The dental arches are the two arches (crescent arrangements) of teeth, one on each jaw, that together constitute the dentition.In humans and many other species, the superior (maxillary or upper) dental arch is a little larger than the inferior (mandibular or lower) arch, so that in the normal condition the teeth in the maxilla (upper jaw) slightly overlap those of the mandible (lower jaw) both ...
The border created by these two dental tissues has much significance as it is usually the location where the gingiva (gums) attaches to a healthy tooth by fibers called the gingival fibers. [ 2 ] Active recession of the gingiva reveals the cementoenamel junction in the mouth and is usually a sign of an unhealthy condition.
Tooth 2. Enamel 3. Dentin 4. Dental pulp 5. cameral pulp 6. root pulp 7. Cementum 8. Crown 9. Cusp 10. Sulcus 11. Neck 12. Root 13. Furcation 14. Root apex 15. Apical foramen 16. Gingival sulcus 17. Periodontium 18. Gingiva 19. free or interdental 20. marginal 21. alveolar 22. Periodontal ligament 23. Alveolar bone 24. Vessels and nerves 25 ...
The space inside the root canals is filled with a highly vascularized, loose connective tissue, called dental pulp. The dental pulp is the tissue of which the dentin portion of the tooth is composed. The dental pulp helps complete formation of the secondary teeth (adult teeth) one to two years after eruption into the mouth. The dental pulp also ...
The maxillary incisors, both the central and lateral, are the most likely teeth to have a talon cusp, which is an extra cusp on the lingual surface. Talon cusps range from less than 1% to 6% of the population, and 33% of cases occur on the permanent maxillary central incisor. [ 19 ]
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 ...