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[3] Unit: Pontics and abutment teeth are referred to as units. The total number of units in a bridge is equal to the number of pontics plus the number of abutment teeth. [1] Saddle: The area on the alveolar ridge which is edentulous where at least one missing tooth is to be reinstated. [3]
The PDL is a part of the periodontium that provides for the attachment of the teeth to the surrounding alveolar bone by way of the cementum. PDL fibres also provide a role in load transfer between the teeth and alveolar bone. (PDL fibers absorb and transmit forces between teeth and alveolar bone.
The tooth bud (sometimes called the tooth germ) is an aggregation of cells that eventually forms a tooth and is organized into three parts: the enamel organ, the dental papilla and the dental follicle. [3] The enamel organ is composed of the outer enamel epithelium, inner enamel epithelium, stellate reticulum and stratum intermedium. [3]
Although technically referring only to anterior teeth (where the lips (labia) are present instead of cheeks), use of the term labial has inaccurately extended to all teeth, anterior and posterior (instead of vestibular). [1] [5] Lateral A tooth which is away from the midline, such as lateral incisor, [1] or the sides of a tooth. [6] Lingual
The distinction is one of anterior (front of the body) versus posterior (rear of the body). The distinction holds in both the upper jaw ( maxilla ) and lower jaw ( mandible ). As a rough guide, it can be said that the anterior teeth are tailored to biting (breaking the food into chewable chunks) [ 1 ] whereas the posterior teeth are tailored to ...
3.0-1.3-4.3 3.0-1.3.3 Permanent dentition varies from 36 to 42, depending on the presence or absence of canines and the number of premolars. [ 34 ] The first premolar ( wolf tooth ) may be absent or rudimentary, [ 32 ] [ 33 ] and is mostly present only in the upper (maxillary) jaw. [ 33 ]
In instances when the maxillary anterior teeth are lingual to the mandibular teeth, the condition is referred to as an anterior crossbite. In some cases, this arrangement of teeth may indicate a displacement of the mandible relative to the maxilla and is called Class III or Pseudo-Class III malocclusion. Normal occlusion is Class I occlusion.
Mesonychids, for example, had no carnassial adaptations, and as a result, the blunt, rounded cusps on its molars had a much more difficult time reducing meat. [3] Likewise, neither members of Oxyclaenidae nor Arctocyonidae had carnassial teeth. [4] On the other hand, carnivorous marsupials have teeth of a carnassial form.