CHAPTER 12 : TOOTH MORPHOLOGY

Question 1

how many total anterior teeth are there in the permanent dentition?

Answer 1

12

Question 2

what is cingulum?

Answer 2

a rounded raised area on the cervical third of the lingual surface

Question 3

what are mamelons?

Answer 3

rounded portions of the incisal edge of the LOWER CENTRAL incisors

Question 4

what is attrition ?

Answer 4

normal process of a tooth wearing away caused by chewing

Question 5

which incisors have STRAIGHT roots?

Answer 5

central incisors

Question 6

which incisors curves on the distal side?

Answer 6

lateral incisors

Question 7

this tooth’s shape of crown varies from person to person

Answer 7

lateral incisors

Question 8

which incisors are frequently CONGENITALLY missing

Answer 8

lateral incisors

Question 9

what is DIASTEMAS?

Answer 9

unusually large open contacts (spaces)

Question 10

smallest teeth in the dental arches

Answer 10

mandibular central incisors

Question 11

what is a canine eminance?

Answer 11

bony ridge over the labial portion of the roots on a canine tooth

Question 12

what are third molars called?

Answer 12

wisdom teeth

Question 13

the three classes of occlusions

Answer 13

neutroclusion
distoclusion
mesioclusion