CHAPTER 12 Key Terms

Question 1

Bicanineate

Answer 1

two cusps type of mandibular second premolar

Question 2

bifurcated

Answer 2

divided into two

Question 3

bifurcation

Answer 3

two roots divided

Question 4

Canine eminence

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

Answer 6

raised , rounded area on the cervical third on the lingual surface

Question 7

cusp

Answer 7

elevated surface of canines and posterior teeth

Question 8

Cusp of Carabelli

Answer 8

fifth supplemental cusp found lingual to the mesiolingual cusp

Question 9

diastema

Answer 9

space in between two teeth

Question 10

Fossa

Answer 10

shallow depression on the lingual surfaces of anterior teeth

Question 11

furcation

Answer 11

area between two or more root branches

Question 12

imbrication lines

Answer 12

slight ridges that run mesiodistally in the cervical third of the teeth

Question 13

incisal edge

Answer 13

ridge on permanent anterior incisors that appears flattened on labial, lingual, or incisal view after tooth eruption

Question 14

mamelon

Answer 14

rounded enamel extension on the incisal ridges of incisors

Question 15

marginal groove

Answer 15

Developmental groove that crosses a marginal ridge and serves as a spillway allowing food to escape

Question 16

Nonsuccedaneous

Answer 16

permanent tooth that does not replace a primary tooth

Question 17

triangular groove

Answer 17

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

Question 18

tricanineate

Answer 18

three - cusp type of mandibular second premolar

Question 19

trifurcated

Answer 19

divided into three

Question 20

trifurcation

Answer 20

three roots divided