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chpt 12 flashcards
| Term | Definition |
|---|---|
| bicanineate | two-cusp type of mandibular second premolar |
| bifurcated | divided into two |
| bifurcation | area in which two roots divide |
| canine eminence | external vertical bony ridge on the labial surface of the canines |
| central groove | most prominent developmental groove on the posterior teeth |
| cingulum | raised, rounded area on the cervical third of the lingual surface |
| cusp | major elevation on the masticatory surfaces of canines and posterior teeth |
| cusp of Carabelli | fifth supplemental cusp found lingual to the mesiolingual cusp |
| diastema | space or gap between two teeth |
| fossa | wide, shallow depression on the lingual surfaces of anterior teeth |
| furcation | area between two or more root branches |
| imbrication lines | slight ridges that run mesiodistally in the cervical third of the teeth |
| incisal edge | ridge on permanent incisors that appears flattened on labial, lingual, or incisal view after tooth eruption |
| inclined cuspal planes | sloping areas between the cusp ridges |
| mamelon | rounded enamel extension on the incisal ridges of incisors |
| marginal groove | developmental groove that crosses a marginal ridge and serves as a spillway, allowing food to escape during mastication |
| marginal ridge | rounded, raised border on the mesial and distal portions of the lingual surfaces of anterior teeth and the occlusal table of posterior teeth. |
| molars | teeth located in the posterior aspect of the upper and lower jaws |
| morphology | study of form and shape, as of the teeth |
| nonsuccedaneous | pertaining to a permanent tooth that does not replace a primary tooth |
| pegged laterals | incisors with a pointed or tapered shape |
| succedaneous | permanent teeth that replace primary teeth |
| triangular groove | developmental groove that separates a marginal ridge from the triangular ridge of a cusp |
| tricanineate | three-cusp type of mandibular second premolar |
| trifurcated | divided into three |
| trifurcation | area in which three roots divide |