Primary Dentition

Question 1

The facial profile of the crown on a primary maxillary lateral incisor is described as?

Answer 1

A continuous curvature

Question 2

The cervical ridges of primary anterior teeth are more prominent than those of the permanent anterior teeth. The cervical areas of primary molars are significantly more constricted than those of permanent molars.

A. The first statement is false; the second statement is true
B. The first statement is true; the second statement is false
C. Both statements are true
D. Both statements are false

Answer 2

C. Both statements are true

Question 3

The incisal edge of the primary maxillary lateral incisor is located?

Answer 3

Facial to the long axis bisector

Question 4

The incisal edge of the primary maxillary central incisor is located?

Answer 4

Centered over the crown

Question 5

The incisal edge on a primary mandibular incisor, is located?

Answer 5

Centered over the root

Question 6

What teeth are not present in primary arches?

Answer 6

pre-molars

Question 7

How do primary and permanent molar roots compare?

Answer 7

Permanent molar roots are wider & closer

Primary molar roots are slender, long, flared

Question 8

Are primary molars larger or smaller than their replacement?

Answer 8

larger

Question 9

What teeth replace primary molars?

Answer 9

Premolars

Question 10

Which is larger: primary or permanent molar crown?

Answer 10

permanent

Question 11

Which enamel is thicker: primary or permanent molar crown?

Answer 11

permanent

Question 12

Do permanent or primary molars have a more prominent cervical ridge (contour in cervical third)?

Answer 12

primary molar

Question 13

Do permanent or primary molars have thicker dentition?

Answer 13

permanent

Question 14

Do permanent or primary molars have thicker pulp chambers?

Answer 14

primary

Question 15

Do primary or permanent molars have more compression at the neck of the tooth?

Answer 15

primary

Question 16

What is the type of root system in a molar?

Answer 16

bifurcation (2 root system)

Question 17

Do primary or permanent molars have a whiter crown color?

Answer 17

primary

Question 18

Do primary or permanent molars have shorter pulp horns?

Answer 18

permanent

Question 19

T/F primary teeth have longer root lengths relative to crown heights compared to permanent teeth

Answer 19

True

Question 20

Where is minimal root angulation in primary teeth seen?

Answer 20

primary anterior teeth

Question 21

In primary molar teeth which roots are more curved: mesial or distal?

Answer 21

mesial roots are more curved that distal roots

Question 22

T/F apices on primary teeth are less pointed

Answer 22

False - apices are more pointed

Question 23

The cervical ridges of primary anterior teeth are more/less prominent than those of permanent teeth

Answer 23

more prominent

Question 24

For the primary maxillary central incisor (facial view) is the mesiodistal measurement smaller/larger than the cervicoincisal height of the crown?

Answer 24

larger

Question 25

What is the cervicoincisal height?

Answer 25

length from cervical line to incisal edge (height of the crown)

Question 26

Which incisal edge (mesial/distal) is curved on the primary maxiallary central incisor (facial view)?

Answer 26

distal edge: curved | mesial edge: straight

Question 27

What is the mesioincisal angle of the primary maxillary central incisor?

Answer 27

90 degrees

Question 28

What is the shape of the distoincisal angle of the primary maxillary central incisor?

Answer 28

rounded

Question 29

Where does the cervical line bend towards?

Answer 29

towards the apex/root

Question 30

Is the cervical line more curved on a primary or permanent maxillary central incisor?

Answer 30

permanent is more curved

Question 31

Which outline is more convex: mesial or distal?

Answer 31

mesial outlines are less convex than distal crown outlines

Question 32

Is the mesial contact point more/less incisal than the distal contact point?

Answer 32

more

Question 33

Is the root more/less blunt in primary or permanent maxillary central incisors?

Answer 33

primary is less blunt than permanent

Question 34

How does the primary lateral incisor differ from the primary central incisor?

Answer 34

There is more curvature in the lateral incisor

Question 35

On a primary maxillary lateral incisor, where does the crown taper towards?

Answer 35

lingual surface (facial to lingual)

Question 36

What surface does the incisal ridge of a primary maxillary lateral incisor curve towards?

Answer 36

curve towards the facial surface

Question 37

The ___________ profile is slightly concave in the primary maxillary lateral incisor

Answer 37

distolingual

Question 38

Is the lingual fossa deep/shallow in a primary maxillary lateral incisor?

Answer 38

deep

Question 39

What is the difference in primary mandibular and maxillary canines?

Answer 39

the mandibular canine is less developed than the maxillary canine - crown is 0.5 mm shorter - root is 2.0 mm shorter - root tip has no curvature - cusp tip is on mesial side - longer distal cuspal ridge than mesial - straight mesial outline - convex distal outline

Question 40

In primary maxillary canines what is unique about the cuspal ridges?

Answer 40

the mesial cuspal ridge is longer than the distal cuspal ridge

Question 41

What does a minimal facial development groove separate in a primary maxillary first molar?

Answer 41

mesiofacial and distofacial cusp

Question 42

Do 1st or 2nd molars have more consistent anatomy?

Answer 42

2nd molars

Question 43

Where is the widest measurement on the crown of a primary maxillary first molar?

Answer 43

at the contact areas

Question 44

In a primary maxillary first molar, is the mesiofacial cusp smaller/taller and narrower/wider than the distofacial cusp

Answer 44

mesiofacial cusp is taller and wider

Question 45

What view can all 3 roots be seen for a primary maxillary first molar?

Answer 45

facial view

Question 46

Which roots are the longest/shortest in the primary maxillary first molar?

Answer 46

Longest: mesiofacial, lingual Shortest: distofacial

Question 47

Where do the roots bi/trifurcate in the primary maxillary first molar?

Answer 47

at the cervical line - CEJ

Question 48

Do primary molars have root trunks?

Answer 48

no

Question 49

At what part of the crown is the cervical ridge convex in a primary maxillary first molar?

Answer 49

mesial half

Question 50

T/F The cervical line drops down apically onto the root surface on the distal half of the crown

Answer 50

False- The cervical line drops down apically onto the root surface on the mesial half of the crown

Question 51

What is the cusp design on the occlusal surface of a primary maxillary first molar?

Answer 51

scalloped (infinte)

Question 52

On the primary maxillary second molar where is there less tooth structure (occlusal view)?

Answer 52

distal side

Question 53

What are the 5 cusps on the primary maxillary second molar ordered from largest to smallest?

Answer 53

1. mesiolingual 2. mesiofacial 3. distofacial 4. distolingual 5. 5th cusp of carabellie

Question 54

What is the crown shape of the primary maxillary second molar?

Answer 54

rhomboidal w/ distal crown convergence

Question 55

What are the major fossa on the primary maxillary second molar?

Answer 55

central and distal

Question 56

What are the minor fossa on the primary maxillary second molar?

Answer 56

mesial triangular and distal triangular

Question 57

What is the distal oblique groove wen traveling onto the lingual surface of the primary maxillary second molar called?

Answer 57

lingual developmental groove

Question 58

Which root is longer on the primary mandibular 1st molar?

Answer 58

mesial

Question 59

When viewing the facial surface of a primary maxillary second molar, which lingual cusp is visible?

Answer 59

mesiolingual

Question 60

When viewing the mesial surface of a primary mandibular first molar, which cusp tip cannot be observed?

Answer 60

distofacial

Question 61

When viewing the mesial surface of a primary mandibular second molar, how many cusps are visible?

Answer 61

2

Question 62

When viewing the primary maxillary second molar from the distal aspect, which of the major cusp tips is the shortest?

Answer 62

Distolingual

Question 63

When viewing the primary maxillary second molar from a mesial view, there are ___ roots visible, with the __ displaying the widest faciolingual measurement

Answer 63

2 roots | mesiofacial