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Dental Anatomy > Primary Dentition > Flashcards

Primary Dentition Flashcards

1
Q

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

A

A continuous curvature

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2
Q

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

A

C. Both statements are true

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3
Q

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

A

Facial to the long axis bisector

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4
Q

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

A

Centered over the crown

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5
Q

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

A

Centered over the root

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6
Q

What teeth are not present in primary arches?

A

pre-molars

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7
Q

How do primary and permanent molar roots compare?

A

Permanent molar roots are wider & closer

Primary molar roots are slender, long, flared

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8
Q

Are primary molars larger or smaller than their replacement?

A

larger

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9
Q

What teeth replace primary molars?

A

Premolars

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10
Q

Which is larger: primary or permanent molar crown?

A

permanent

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11
Q

Which enamel is thicker: primary or permanent molar crown?

A

permanent

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12
Q

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

A

primary molar

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13
Q

Do permanent or primary molars have thicker dentition?

A

permanent

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14
Q

Do permanent or primary molars have thicker pulp chambers?

A

primary

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15
Q

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

A

primary

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16
Q

What is the type of root system in a molar?

A

bifurcation (2 root system)

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17
Q

Do primary or permanent molars have a whiter crown color?

A

primary

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18
Q

Do primary or permanent molars have shorter pulp horns?

A

permanent

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19
Q

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

A

True

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20
Q

Where is minimal root angulation in primary teeth seen?

A

primary anterior teeth

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21
Q

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

A

mesial roots are more curved that distal roots

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22
Q

T/F apices on primary teeth are less pointed

A

False - apices are more pointed

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23
Q

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

A

more prominent

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24
Q

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

A

larger

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25
Q

What is the cervicoincisal height?

A

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

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26
Q

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

A

distal edge: curved

mesial edge: straight

27
Q

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

A

90 degrees

28
Q

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

A

rounded

29
Q

Where does the cervical line bend towards?

A

towards the apex/root

30
Q

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

A

permanent is more curved

31
Q

Which outline is more convex: mesial or distal?

A

mesial outlines are less convex than distal crown outlines

32
Q

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

A

more

33
Q

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

A

primary is less blunt than permanent

34
Q

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

A

There is more curvature in the lateral incisor

35
Q

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

A

lingual surface (facial to lingual)

36
Q

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

A

curve towards the facial surface

37
Q

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

A

distolingual

38
Q

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

A

deep

39
Q

What is the difference in primary mandibular and maxillary canines?

A

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
40
Q

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

A

the mesial cuspal ridge is longer than the distal cuspal ridge

41
Q

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

A

mesiofacial and distofacial cusp

42
Q

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

A

2nd molars

43
Q

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

A

at the contact areas

44
Q

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

A

mesiofacial cusp is taller and wider

45
Q

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

A

facial view

46
Q

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

A

Longest: mesiofacial, lingual
Shortest: distofacial

47
Q

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

A

at the cervical line - CEJ

48
Q

Do primary molars have root trunks?

A

no

49
Q

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

A

mesial half

50
Q

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

A

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

51
Q

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

A

scalloped (infinte)

52
Q

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

A

distal side

53
Q

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

A
  1. mesiolingual
  2. mesiofacial
  3. distofacial
  4. distolingual
  5. 5th cusp of carabellie
54
Q

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

A

rhomboidal w/ distal crown convergence

55
Q

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

A

central and distal

56
Q

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

A

mesial triangular and distal triangular

57
Q

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

A

lingual developmental groove

58
Q

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

A

mesial

59
Q

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

A

mesiolingual

60
Q

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

A

distofacial

61
Q

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

A

2

62
Q

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

A

Distolingual

63
Q

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

A

2 roots

mesiofacial

Dental Anatomy (12 decks)

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