(12) tooth morphology Flashcards
Bicanineate
A two-cusp type of mandibular second premolar.
bifurcated
Divided into two.
Bifurcation
Area in which two roots divide.
Canine eminence (EM-i-nens)
External vertical bony ridge on the labial surface of the canines.
Central groove
Most prominent developmental groove on the posterior teeth.
Cingulum (SING-gyoo-lum)
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
The fifth supplemental cusp found lingual to the mesiolingual cusp.
Diastema (dye-uh-STEE-muh)
A space between two teeth.
fossa
Wide, shallow depression on the lingual surfaces of anterior teeth.
furcation
Area between two or more root branches.
Imbrication (im-bri-KAY-shun)
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 (MAM-uh-lon)
Rounded enamel extension on the incisal ridges of incisors.
marginal groove
A 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 forma dnshape, as of the teeth
nonsuccedaneous (non-suk-se-DAY-nee-us)
pertaining to a permanent tooth that does not replace a primary tooth
pegged laterals
incisors with a pointed or tapered shape.
uccedaneous (suk-se-DAY-nee-us)
permanent teeth that replace primary teeth
triangular groove
a developmental groove that separates a marginal ridge from the triangular ridge of a cusp
tricanineate
a three-cusp type of mandibular second premolar
