dental test bank

Question 1

Tooth #8 describes the Permanent Maxillary Right Central Incisor in the Universal numbering system. Identify this tooth using either the International Numbering System.

Answer 1

1,1

Question 2

TRUE or FALSE (circle one) A transverse ridge is made up of two oblique ridges

Answer 2

f

Question 3

Based on its name “bicuspid”, how many cusps are usually present on a premolar?

Answer 3

2

Question 4

Which of the following is not a function of an incisor?

Answer 4

Grasp meat for tearing from the bone

Question 5

TRUE OR FALSE: The mesial of 8 contacts the mesial of 9

Answer 5

TRUE

Question 6

The incisal edge of a maxillary central incisor is located______________ a bisecting line from a proximal aspect.

Answer 6

ON

Question 7

Where is the lingual height of contour on a maxillary lateral incisor located?

Answer 7

c 1/3

Question 8

TRUE OR FALSE. As a general rule, the mesial curvature of the CEJ is greater than the distal.

Answer 8

T

Question 9

TRUE OR FALSE. One distinct difference between maxillary and mandibular incisors is that mandibular incisors DO NOT HAVE a fossa, mesial and distal marginal ridges, or a cingulum.

Answer 9

F

Question 10

Arrange the measurements of a mandibular central incisor from least to greatest. Remember, specific measurements are not important. only how the measurements compare with others.
For example: F_L > M D

Answer 10

Mesiodistal, Labiolingual, Incisal gingival, Cervico-apical

Question 11

the incisal edge of a mandibular central incisor is _________ a bisecting line, while the cingulum is _________ a bisecting line.

Answer 11

lingual to, distal to

Question 12

The engineering feature incorporated into buildings and mandibular central incisors for added strength is the __________.

Answer 12

I bea,m

Question 13

Which of the following is not true about the Haplodont class of dentition?
a. They consist of a single cone
b. reptiles are haplodonts
c. there is no occlusion with Haplodonts
d. Jaw movements are related to and governed by tooth form in all cases including Haplodonts
e. all of the above are true

Answer 13

E

Question 14

All teeth are formed from how many lobes?

Answer 14

4 or more

Question 15

Humans are considered to have what tooth and jaw form?

Answer 15

Bunodont and isognathous (relatively)

Question 16

What is the geometries of a maxillary central incisor from the facial and proximal view respectively?

Answer 16

Trapezoid, Triangle

Question 17

Calcification of the permanent mandibular canine begins at about what age?

Answer 17

4 to 5 months

Question 18

The mesial contact area of the permanent maxillary canine is centered where on the crown?

Answer 18

Junction of the incisal and middle third

Question 19

Which of the following teeth is most likely to have a bifurcated root?

Answer 19

mandibular canine

Question 20

Which cusp ridge is longer on a permanent maxillary canine?

Answer 20

distal

Question 21

Which of the following characteristics, when viewed together from the labial aspect, give the appearance of the mandibular canine being bent distally at the CEJ?
Select all correct answers

Answer 21

mesial outline of the crown is almost straight with the mesial outline of the root

The distal outline has a concavity in the gingival third and a convexity in the incisal and middle third

Question 22

At what age is calcification of the permanent mandibular 1st molar first evident?

Answer 22

At birth

Question 23

Statement 1:
from the mesial view, all permanent mandibular posterior teeth resemble a rhombus.
Statement 2:
in relation to the root axis, the crowns of all mandibular posterior teeth are tilted towards the buccal.

Answer 23

Statement 1 is true and statement 2 is false

Question 24

Which mandibular molar has a cruciform or cross shaped occlusal anatomy?

Answer 24

mandibular 2nd molar

Question 25

Which mandibular molar has a cruciform or cross shaped occlusal anatomy?

Answer 25

mandibular 2nd molar

Question 26

TRUE or FALSE As a general rule the bifurcation of roots in mandibular molars tend to get larger and wider as you move posteriorly from 1st to 3rd molar.

Answer 26

F

Question 27

Which cusp of the maxillary first molar is the largest and most developed?

Answer 27

Mesiolingual

Question 28

Calcification of the permanent maxillary first molar begins ate what age?

Answer 28

at birth

Question 29

Calcification of the permanent maxillary second molar begins at what age?

Answer 29

2.5 years

Question 30

Which of the following teeth is least likely to have roots that are fused together to act as one large tapered root?

Answer 30

maxillary first moalr

Question 31

The oblique ridge found on the maxillary first molar is formed by the union of which of the following structures?

Answer 31

Distal Ridge of the mesiolingual cusp and the triangular ridge of the distobuccal cusp.

Question 32

True or False. It is possible for the roots of primary teeth to begin to resorb before they are done erupting.

Answer 32

TRUE

Question 33

Eruption can be defined as: 1)The tooth's emergence through the gingiva 2)When root formation if complete 3)When the First sign of calcification appears 4) The continuous movement from the dental bud to occlusal contact.

Answer 33

1 and 4

Question 34

At what age does tooth J normally erupt?

Answer 34

29 months

Question 35

The crowns of primary anterior teeth are wider mesiodistally in comparison with their crown length, than are the permanent anterior teeth.

Answer 35

T

Question 36

Which tooth replaces tooth #R?

Answer 36

27

Question 37

The number of point angles on posterior teeth is:

Answer 37

four

Question 38

The lingual cusp tip on the maxillary first premolar is positioned:

Answer 38

Lingual to and mesial of the facial cusp.

Question 39

The ridge that comprises the lingual segment of the transverse ridge of the maxillary first premolar is correctly named:

Answer 39

The lingual triangular cusp ridge

Question 40

The ridge that separates the two lingual fossae on a maxillary canine is correctly named:

Answer 40

the lingual ridge

Question 41

All height of contours are contact areas

Answer 41

f

Question 42

The lingual crest of contour on the maxillary first premolar is located:

Answer 42

m 1/3

Question 43

Viewed from the lingual, the lingual cusp tip of the maxillary 1st premolar is positioned:

Answer 43

medial to the facial cusp

Question 44

Which tooth often displays a mesiolingual developmental groove?

Answer 44

mandibular 1st premolar

Question 45

The distal marginal ridge of all posterior teeth is lower than the mesial.

Answer 45

false