incisors

Question 1

which of the 4 incisors has the largest crown?

Answer 1

upper central

Question 2

which incisors’ crown is almost as wide as it is long?

Answer 2

upper central

Question 3

describe the labial surface of the upper central incisor

Answer 3

smooth, slightly convex surface

Question 4

which angle of the upper incisor is more right-angled?

Answer 4

mesio-incisal

Question 5

which angle of the upper incisor is more curved?

Answer 5

disto-incisal

Question 6

describe the lingual surface of the upper central incisor

Answer 6

concave with mesial and distal marginal ridges which meet at the cervix to form a cingulum

Question 7

which surface of the upper incisors, mesial or distal, has greater undulation?

Answer 7

mesial

Question 8

describe the most apparent difference when looking at the crown of an upper central and upper lateral incisor

Answer 8

lateral is much less bulky and more slender than a central

Question 9

sometimes, in upper laterals, the 2 marginal ridges meet at the cervix closing a depression, what is this called?

Answer 9

fossa

Question 10

which upper incisor sits higher in the mouth?

Answer 10

lateral

Question 11

what are ridges on the incisal edge of incisors called?

Answer 11

mamelons

Question 12

describe the crown of the lower central incisor

Answer 12

flat and almost symmetrical

Question 13

which edge of the lower central incisor is marginally rounder?

Answer 13

disto-incisal

Question 14

describe the marginal ridges and cingulum on the lower central incisor

Answer 14

faint marginal ridges and small cingulum

Question 15

describe the basic shape of the lower lateral incisor crown

Answer 15

fan shaped, with distal flare

Question 16

which lower incisor is smaller?

Answer 16

central