Vocab - Ch 12: Tooth Morphology

bicanineate

two-cusp type of mandibular second premolar

bifurcated

divided in 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 gape 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 ride of a cusp

tricanineate

three-cusp type of mandibular second premolar

trifurcated

divided into three

trifrucation

area in which three roots divide