Back of the book pt. 1

Question 1

How many teeth are present in one quadrant of a complete adult dentition?

Answer 1

8

Question 2

What class of teeth is present in the permanent dentition that is NOT present in the primary dentition?

Answer 2

Premolars

Question 3

In a permanent dentition, the fifth tooth from the midline is

Answer 3

premolar

Question 4

Posterior teeth in the permanent dentition include which of the following?

Answer 4

premolars and molars only

Question 5

Which permanent tooth erupts in the space previously held by the primary second molar?

Answer 5

Second premolar

Question 6

If you read an article in a British dental journal that refers to tooth No. 48, you would suspect that the authors were using the International Numbering System. What universal number (or letter) would they be talking about?

Answer 6

32

Question 7

sing the Universal Numbering System, what numbers are used to identify maxillary canines?

Answer 7

6, 11

Question 8

Which tooth junctions are NOT normally visible on a handheld intact tooth?

Answer 8

Dentinoenamel junction
Dentinocemental junction
Dentinopulpal junction

(only visible junction is CEJ)

Question 9

Which statement(s) is (are) likely to be true on a person with a barely erupted tooth No. 9?

a. The clinical crown is larger than the anatomic crown
b. The clinical crown is smaller than the anatomic crown
c. The clinical root is larger than the anatomic root
d. The clinical root is smaller than the anatomic root

Answer 9

b. The clinical crown is smaller than the anatomic crown

c. The clinical root is larger than the anatomic root

Question 10

Which tooth surface(s) face(s) the lips or cheeks?

Answer 10

Facial, buccal, labial

Question 11

Which pairs of teeth have a mesial surface touching a mesial surface?

a. 25 and 26
b. 16 and 17
c. 7 and 8
d. 1 and 32
e. 8 and 9

Answer 11

e. 8 and 9

Question 12

When viewing tooth No. 8 from the distal view, it can be divided into thirds from the incisal to the cervical and from the facial to the lingual. Which third is NOT possible to see from the distal view?

Answer 12

Mesial third

Question 13

If you were observing the faciolingual dimension of a tooth, what surface(s) could you be viewing?

a. Mesial
b. Occlusal
c. Proximal
d. Labial
e. Distal

Answer 13

Mesial, occlusal, proximal, distal

Question 14

If the root-to-crown ratio of a maxillary molar (No. 14) is 1.72 and that of another molar, No. 16, is 1.49, which tooth has the longest root relative to its shorter crown?

Answer 14

No. 14

Question 15

Which of the following bumps or ridges is NOT likely to be found on a maxillary premolar?

a. Oblique ridge
b. Cingulum
c. Mesial marginal ridge
d. Transverse ridge
e. Triangular ridge

Answer 15

Oblique ridge, cingulum

Question 16

Which ridges surround the perimeter of the occlusal surface (occlusal table) of a two-cusped premolar?

a. Mesial marginal ridge
b. Distal marginal ridge
c. Mesial cusp ridge of the buccal cusp
d. Distal cusp ridge of the lingual cusp
e. Transverse ridge

Answer 16

a, b, c, d

Question 17

What is the correct order of anatomic landmarks of a tooth with two roots from the cementoenamel junction to the root tip?

a. Cervix, trunk, furcation, apex
b. Trunk, cervix, furcation, apex
c. Trunk, furcation, cervix, apex
d. Cervix, trunk, apex, furcation
e. Furcation, trunk, cervix, apex

Answer 17

a. Cervix, trunk, furcation, apex

Question 18

When viewed from the proximal views, what is the location of the greatest bulge (crest of curvature or height of contour) on the facial surface of all teeth?

a. Occlusal third
b. Lingual third
c. Buccal third
d. Middle third
e. Cervical third

Answer 18

e. Cervical third

Question 19

Which space(s) contain(s) the part of the gingiva known as the interdental papilla?

a. The buccal embrasure
b. Occlusal embrasure
c. Lingual embrasure
d. Cervical embrasure
e. Interproximal space

Answer 19

d. Cervical embrasure

e. Interproximal space

Question 20

deal class I occlusion involves an important first permanent molar relationship where the mesiobuccal cusp of the maxillary first molar is located within the

Answer 20

Mesiobuccal groove of the mandibular first molar

Question 21

Where do lingual cusps of maxillary teeth occlude in ideal class I occlusion?

a. In the buccal embrasure space between mandibular teeth
b. In the lingual embrasure space between mandibular teeth
c. In occlusal fossae of mandibular teeth

Answer 21

c. In occlusal fossae of mandibular teeth

Question 22

How many developmental lobes form a premolar with two cusps (one buccal cusp and one lingual cusp)?

a. 1
b. 2
c. 3
d. 4
e. 5

Answer 22

4