(12) tooth morphology

Question 1

Bicanineate

Answer 1

A two-cusp type of mandibular second premolar.

Question 2

bifurcated

Answer 2

Divided into two.

Question 3

Bifurcation

Answer 3

Area in which two roots divide.

Question 4

Canine eminence (EM-i-nens)

Answer 4

External vertical bony ridge on the labial surface of the canines.

Question 5

Central groove

Answer 5

Most prominent developmental groove on the posterior teeth.

Question 6

Cingulum (SING-gyoo-lum)

Answer 6

Raised, rounded area on the cervical third of the lingual surface.

Question 7

cusp

Answer 7

Major elevation on the masticatory surfaces of canines and posterior teeth.

Question 8

Cusp of Carabelli

Answer 8

The fifth supplemental cusp found lingual to the mesiolingual cusp.

Question 9

Diastema (dye-uh-STEE-muh)

Answer 9

A space between two teeth.

Question 10

fossa

Answer 10

Wide, shallow depression on the lingual surfaces of anterior teeth.

Question 11

furcation

Answer 11

Area between two or more root branches.

Question 12

Imbrication (im-bri-KAY-shun)

Answer 12

lines Slight ridges that run mesiodistally in the cervical third of the teeth.

Question 13

Incisal edge

Answer 13

Ridge on permanent incisors that appears flattened on labial, lingual, or incisal view after tooth eruption.

Question 14

Inclined cuspal planes

Answer 14

Sloping areas between the cusp ridges.

Question 15

Mamelon (MAM-uh-lon)

Answer 15

Rounded enamel extension on the incisal ridges of incisors.

Question 16

marginal groove

Answer 16

A developmental groove that crosses a marginal ridge and serves as a spillway, allowing food to escape during mastication.

Question 17

marginal ridge

Answer 17

Rounded, raised border on the mesial and distal portions of the lingual surfaces of anterior teeth and the occlusal table of posterior teeth.

Question 18

molars

Answer 18

Teeth located in the posterior aspect of the upper and lower jaws.

Question 19

morphology

Answer 19

study of forma dnshape, as of the teeth

Question 20

nonsuccedaneous (non-suk-se-DAY-nee-us)

Answer 20

pertaining to a permanent tooth that does not replace a primary tooth

Question 21

pegged laterals

Answer 21

incisors with a pointed or tapered shape.

Question 22

uccedaneous (suk-se-DAY-nee-us)

Answer 22

permanent teeth that replace primary teeth

Question 23

triangular groove

Answer 23

a developmental groove that separates a marginal ridge from the triangular ridge of a cusp

Question 24

tricanineate

Answer 24

a three-cusp type of mandibular second premolar

Question 25

trifurcated

Answer 25

divided into three

Question 26

trifurcation

Answer 26

area in which three roots divide