Missed Questions - Dentanat 96'

Front 1

Which of the following is correct regarding the contact relationship of maxillary central incisor and maxillary lateral incisors?

Contacts are centered faciolingually.
Contacts are centered incisocervically.
Facial embrasures are wider than lingual embrasures.
Incisal embrasures are larger than gingival embrasures.

Back 1

Contacts are centered faciolingually.

Front 2

The distal contact area of a maxillary lateral incisor with ideal alignment is located

near the incisal edge.
in the middle third.
in the incisal third.
at the junction of the incisal and middle thirds.
at the junction of the middle and cervical thirds.

Back 2

in the middle third.

Front 3

Calcification of the mandibular third molars generally begins at

3-4 years.
5-7 years.
8-10 years.
11-13 years.
14-16 years

Back 3

8-10 years

Front 4

Which of the following represents the largest cusp of the mandibular first molar?

Distal
Mesiofacial
Mesiolingual
Distofacial
Distolingual

Back 4

Mesiofacial

Front 5

In cervical cross-section, the root of a mandibular canine is described as

triangular.
roughly conical.
flattened in a mesiodistal direction.
broader mesiodistally on the lingual than on the facial.

Back 5

flattened in a mesiodistal direction.

Front 6

Which of the following primary teeth would exhibit a prominent cervical ridge on both the facial and lingual surfaces?

A
F
J
L
T

Back 6

F

Front 7

Which of the following is characteristic of primary maxillary canines?

Crown height < mesiodistal width.
Cusp is low and rounded.
The mesioincisal cusp ridge is shorter than the distoincisal cusp ridge.
The mesioincisal cusp ridge is longer than the distoincisal cusp ridge.

Back 7

The mesioincisal cusp ridge is longer than the distoincisal cusp ridge.

Front 8

Which of the following can adversely affect the self-cleaning quality of a dentition in normal alignment?

Contact of adjacent teeth
Effficient use of a toothbrush
Friction of food material during mastication
Too great a contour of the cervical enamel ridge

Back 8

Too great a contour of the cervical enamel ridge

Front 9

Which incisor is MOST frequently markedly concave on the lingual surface?

Maxillary central
Mandibular central
Maxillary lateral
Mandibular lateral

Back 9

Maxillary lateral

Front 10

The root tip MOST likely to be forced into the maxillary sinus during surgical removal is the of a maxillary

central incisor.
canine.
first premolar.
first molar.

Back 10

first molar.

Front 11

The outline of a pulp cavity indicates that this tooth probably

has 3 distinct cusps.
has experienced trauma.
is that of an old person.
is that of a young person

Back 11

is that of a young person

Front 12

In an ideal intercuspal position, the distofacial cusp of a maxillary first molar opposes which feature on a mandibular first molar?

The distal cusp
The distofacial cusp
The distofacial developmental groove
The mesiofacial developmental groove

Back 12

The distofacial developmental groove

Front 13

From the facial view, the maxillary first molar has its lingual root apex in line with which of the following?

Facial groove
Distofacial line angle
Distofacial cusp tip
Mesiofacial cusp tip
Mesiodistal diameter midpoint

Back 13

Facial groove

Front 14

What condylar movement is performed as the mandible moves from a pure protrusive movement from maximum intercuspal position to a maximum protruded position?

Translation
Rotation
Hinge
Medial and forward

Back 14

Translation

Front 15

The apices of a mandibular second molar are located

posteriorly to the pterygomandibular raphe.
inferiorly to the mylohyoid muscle insertion.
inferiorly to the masseter muscle insertion.
inferiorly to the medial pterygoid muscle insertion.

Back 15

inferiorly to the mylohyoid muscle insertion.

Front 16

In which of the following teeth is the mesial portion MOST distinctly separated from the remainder of the occlusal table by a transverse ridge?

Primary maxillary first molar
Primary mandibular first molar
Primary mandibular second molar
Mandibular second premolar
Mandibular first molar

Back 16

Primary mandibular first molar

Front 17

The concept of using a lateral checkbite record to set a respective condylar inclination implies which of the following?

That the non-working side condyle has traveled against the posterior wall of the fossa
That the working side condyle has traveled down the slope of the articular eminence
That the non-working side condyle has moved anteriorly and medially
That the working side condyle has moved toward the medial wall of the glenoid fossa

Back 17

That the non-working side condyle has moved anteriorly and medially

Front 18

The lingual cusp(s) on which of the following mandibular posterior teeth is (are) approximately 2/3 the height of the respective facial cusp(s)?

First premolar
Second premolar
First molar
Second molar
Third molar

Back 18

First premolar

Front 19

In the comparison of the rhomboidal and heart-shaped crown outlines of maxillary molars, the crown portion that differs MOST in contour and size is the

mesiofacial.
distofacial.
mesiolingual.
distolingual.

Back 19

distolingual.

Front 20

Which of the following is the first succedaneous tooth?

Maxillary central incisor
Mandibular central incisor
Maxillary lateral incisor
Mandibular first molar

Back 20

Mandibular central incisor

Front 21

From a proximal view, which of the following describes the crown outline on a mandibular posterior tooth?

It is designed to protect against root fracture by having the crown structure serve as root support.
It is designed to allow for a minimum amount of chewing effficiency on the coronal surface of the tooth.
It is usually rhomboidal and has a design flaw that encourages cusp fracture.
It is usually trapezoidal and has a design flaw that encourages cusp fracture

Back 21

It is usually rhomboidal and has a design flaw that encourages cusp fracture.

Front 22

Which of the following normally describes the general crown form of canines when viewed from the facial or lingual aspect?

3-sided
4-sided
5-sided
6-sided
7-sided

Back 22

5-sided

Front 23

Which of the following represents the apex of the triangular-shaped boundary of the interproximal space?

Alveolar bone
Gingival tissue
The marginal ridges of the adjacent teeth
The proximal surfaces of the adjacent teeth
The contact area of the adjacent teeth

Back 23

The contact area of the adjacent teeth

Front 24

The greatest difficulty in removing calculus from the root trunk area of molars is seen on which of the following surfaces?

Mesial of mandibular second
Distal of mandibular second
Lingual of maxillary second
Distal of maxillary first
Mesial of mandibular first

Back 24

Distal of maxillary first