Dental Anayomy

Question 1

On the crown a maxillary premolar, the buccal triangular ridge is also known as as the

Answer 1

Lingual cusp ridge of the bucal cusp

Question 2

the lingual cusp of the mandibular first premolar lies in the

Answer 2

lingual embrasure between the maxillary first premolar and maxillary canine

Question 3

The mandibular condyle and its associated disc slide against which surface in normal mandibular opening?

Answer 3

Posterior portion of articular eminence

Question 4

The primary maxillary canine usually erupts around:

Answer 4

16-20 mo

Question 5

ideal intercuspal position, the distolingual cusp of #1 contacts the

Answer 5

distal marginal ridge of #32

Question 6

premolars does not have a transverse ridge?

Answer 6

Mandibular 2nd premolar (3-cusp type)

Question 7

he maxillary 1st premolar typically has a pulp chamber of what shape (at the level of the CEJ)?

Answer 7

Oval (flattened mesiodistally)

Question 8

How many teeth in the primary dentition normally have a cingulum?

Answer 8

12

Question 9

What TMJ ligament is derived from the 1st branchial arch?

Answer 9

Sphenomandibular

Question 10

which tooth is most likely to have two canals in a single root?

Answer 10

Mandibular lateral incisor

Question 11

Which tooth is most likely to have a cervical enamel projection?

Answer 11

Mandibular 2nd molar

Question 12

A cervical ridge is found on the facial surface of how many primary teeth?

Answer 12

20

Question 13

The mandible functions as what type of lever?

Answer 13

III

Question 14

Which cusp is the longest and largest on a maxillary 1st molar?

Answer 14

Mesiolingual

Question 15

he sphenomandibular ligament inserts at the:

Answer 15

inferior to the lingula

Question 16

When the mandible shifts to the left, the right condylar head moves in which direction relative to articular eminence?

Answer 16

Anteriorly, downward, medially

Question 17

A cervical ridge is found on the facial surface of how many primary teeth?

Answer 17

20

Question 18

he maxillary buccal and mandibular lingual cusps function as supporting cusps in which of the following occlusal schemes

Answer 18

posterior crossbite

Question 19

which of the following muscles function to elevate and protract the mandible?

Answer 19

masseter

Question 20

How many point angles are found on tooth No. 12?

Answer 20

4

Question 21

in total, how many grooves can be found on the bucal and lingual surfaces of both mandibular 1st and 2nd molars?

Answer 21

5

Question 22

Which tooth has a mesial marginal ridge that is more cervically located than the distal marginal ridge?

Answer 22

1st premolar

Question 23

The bud stage of tooth development starts at about

Answer 23

8 w

Question 24

Which muscle inserts in the articular disc and condylar neck?

Answer 24

lateral pterygoid

Question 25

The crowns of all 20 primary teeth begin to calcify between:

Answer 25

4-6

Question 26

How many transverse ridges exist on a maxillary molar?

Answer 26

1

Question 27

Which succedaneous tooth erupts beneath tooth J?

Answer 27

13

Question 28

Which of the following muscles is/are most active in maintaining centric occlusion?

Answer 28

2 3

Question 29

As a dentist, how many determinants of occlusion can you directly control?

Answer 29

1

Question 30

Which of the following teeth has the roundest pulp chamber (at the level of the CEJ)?

Answer 30

Maxillary central incisor

Question 31

Which cusp has two triangular ridges on the maxillary 1st molar?

Answer 31

mesiolingual

Question 32

Which posterior tooth is most symmetrical from an occlusal view?

Answer 32

Maxillary 2nd premolar

Question 33

Calcification of the permanent 1st molar begins a

Answer 33

at birth

Question 34

Bilateral contraction of which of the following muscles results in protrusion of the mandible?

Answer 34

lateral pterygoid

Question 35

Which tooth is MOST likely to have a deeper lingual pit?

Answer 35

Maxillary lateral incisor