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Dental Boards > Oral Anatomy > Flashcards

Oral Anatomy Flashcards

1
Q

What tooth has the most proprioceptors?

A

Canines because of canine guidance

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2
Q

What nerve innervates primary maxillary molars?

A

MSA nerve

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3
Q

Primary teeth are ____ mineralized than permanent teeth, resulting in more wear.

A

less

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4
Q

What is the space difference between primary teeth and their permanent successors?

A

2-4 mm

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5
Q

What is indicated if mamelons are seen beyond age 10?

A

anterior open bite

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6
Q

When is calcification of primary roots completed?

A

ages 3-4

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7
Q

What is the eruption pattern of the primary dentition?

A

centrals, laterals, 1st molars, canines, 2nd molars

  • lower before upper except for laterals
  • front to back except for canines
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8
Q

Between what teeth do you find the maxillary primate space?

A

between laterals and canines

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9
Q

Between what teeth do you find the mandibular primate space?

A

between the canine and 1st molar

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10
Q

What causes spacing of the anterior teeth?

A

growth of the dental arches

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11
Q

What is the direction of the enamel rods in the cervical third of a primary tooth?

A

enamel rods are in an occlusal direction

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12
Q

Primary molar roots are __ ____ than permanent molars

A

more divergent

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13
Q

Do primary molars have an identifiable root trunk?

A

Not really; they are often very small

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14
Q

What tooth has the smallest faciolingual crown dimension?

A

primary mandibular central incisor

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15
Q

What teeth are the most bilaterally symmetrical?

A

primary and secondary mandibular central incisors

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16
Q

If delayed resorption of primary incisors occurs, the secondary teeth erupt _____.

A

lingually

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17
Q

Do primary central incisors have a prominent cervical ridge on the facial and lingual?

A

yes

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18
Q

Is the mesioincisal slope on a primary canine longer or shorter than the distoincisal slope from the facial view?

A

longer

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19
Q

Is the cusp tip on a primary canine more mesial or distal?

A

Distal, because the mesioincisal slope is longer than the distoincisal

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20
Q

What tooth in the permanent dentition does the primary maxillary first molar resemble?

A

a permanent premolar (not always)

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21
Q

The roots on a maxillary primary first molar resemble….

A

a typical secondary maxillary molar

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22
Q

What cervical ridge is most prominent for primary maxillary teeth?

A

mesiofacial surface of the primary first molar

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23
Q

The primary maxillary second molar is the only tooth in the primary dentition that generally has ______.

A

an oblique ridge

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24
Q

The primary second molar is the only one to have ____, ______, and _____.

A

oblique ridge, transverse ridge, and distolingual groove

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25
Q

the Primary second molar generally has a cusp of Carabelli. True or False?

A

True

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26
Q

The last of the primary teeth to erupt is what?

A

maxillary secondary molar

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27
Q

Does the primary second molar have more cusps than the primary first molar?

A

yes

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28
Q

What primary tooth has the most distinctly prominent facial cervical ridge?

A

mandibular first molar

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29
Q

from the facial view on the primary mandibular first molar, what third of the tooth contains the most apical portion of the CEJ?

A

the mesial 1/3

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30
Q

What is special about the fossa on a primary mandibular first molar?

A

It is a distal triangular shaped fossa

some call it a distal or main fossa

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31
Q

Which tooth in the primary dentition has the most distinctive transverse ridge?

A

mandibular first molar

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32
Q

Which tooth does the primary first molar represent from the permanent dentition?

A

It doesn’t look like any teeth in the permanent dentition

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33
Q

Which cusp on a primary mandibular first molar is the highest and sharpest?

A

mesiolingual cusp

34
Q

What is the function of the incisors?

A

biting

35
Q

What tooth has the greatest faciolingual axial inclination?

A

Maxillary central incisor

36
Q

Which tooth has the greatest cervical curvature of the CEJ of any other tooth?

A

mesial side of maxillary central incisor

37
Q

General of CEJ:

The CEJ dips deeper on:

A

anterior teeth than posterior teeth
maxillary than mandibular
mesial than distal

38
Q

Which anterior tooth is wider mesiodistally than faciolingually?

A

maxillary central incisor

39
Q

Which anterior tooth has the greatest mesiodistal crown dimension?

A

maxillary central incisor

40
Q

Which tooth has almost identical measurements of incisocervical and mesiodistal dimensions?

A

maxillary central incisor

41
Q

What happens to the lingual embrasure between the maxillary central and maxillary incisor due to placement of the contact area?

A

The lingual embrasure becomes larger than the facial embrasure (true for most teeth)

42
Q

Is the incisal embrasure between the two maxillary centrals larger or smaller than the embrasure between a maxillary central and lateral?

A

The incisal embrasure is smaller between the two centrals

43
Q

Which tooth has the most crown SHAPE variations?

A

maxillary lateral incisor

44
Q

Which tooth (beside 3rd molars) has the most deviation in crown morphology?

A

maxillary lateral incisors

45
Q

Which tooth is most often in abnormal relation and contact with adjacent teeth?

A

maxillary lateral incisor

46
Q

Except for 3rd molars, which tooth is most often congenitally missing?

A

maxillary lateral incisor

47
Q

Which non-molar tooth most frequently has a mesial and distal pulp horn?

A

maxillary central incisor

48
Q

Which non-molar tooth is least likely to have a bifurcated root?

A

maxillary central incisor

49
Q

Which tooth is most likely to demonstrate lingual pit caries?

A

maxillary lateral incisor

50
Q

Which anatomical feature on the maxillary lateral incisor complicates root planning?

A

distolingual groove

51
Q

Which tooth has the greatest cervical prominence of any anterior tooth?

A

Maxillary canine

52
Q

What is the positioning of the maxillary canine from the proximal view?

A

nearly vertical axis

53
Q

Which tooth has the greatest overall total tooth length?

A

maxillary canine

54
Q

Which tooth has the longest root of any tooth in the mouth?

A

maxillary canine

55
Q

Which tooth has the greatest faciolingual dimension of any anterior tooth?

A

maxillary canine

56
Q

What third of the tooth is the distal contact of the maxillary canine found?

A

middle third

57
Q

Idiom to remember contact location of anterior teeth.

A

I Just Jacked Michael Jackson’s Moped

58
Q

Which tooth has the potential of contacting both an anterior tooth and posterior tooth?

A

Canine

59
Q

Where is the cusp tip of the maxillary canine relative to the lingual axis?

A

facial to the lingual axis

60
Q

During formation, which lobe of the maxillary canine includes the cusp tip?

A

middle lobe

61
Q

Is facial or lingual viewed more from the incisal view of a maxillary canine?

A

lingual

62
Q

Why does the maxillary canine not look symmetric from mesial to distal?

A

It has a distal buldge

63
Q

What is the crown form shape of a maxillary canine from the facial view?

A

pentagonal

64
Q

Which tooth in the mouth has the straightest mesial alignment from crown to root?

A

mandibular canine

65
Q

Which surface of the mandibular canine is almost parallel to the long axis of the tooth?

A

mesial surface

66
Q

Which tooth has the longest crown dimension of any other tooth?

A

mandibular canine

67
Q

Is the cingulum less or more prominent on a mandibular canine than the maxillary canine?

A

less prominent

68
Q

Is the mandibular canine or maxillary canine smaller mesiodistally?

A

mandibular canine is smaller mesiodistally because the maxillary canine has a distal bulge.

69
Q

Which anterior tooth is most likely to have a bifurcated root?

A

mandibular canine - one facial and one lingual

70
Q

Which tooth has the longest root of any mandibular tooth?

A

mandibular canine

71
Q

What is the shape of mandibular canine root in cross-section?

A

irregular, flat oval

72
Q

What is the shape of the mandibular canine in cross-section at the CEJ?

A

It is ovoid shape, but wider mesiodistally at the labial side

73
Q

Are contact areas of the mandibular canine more incisal or gingival compared to the maxillary canine?

A

incisal

74
Q

From incisal to apical end, what shape does the mandibular canine make?

A

it is convex, making a “C” shape

75
Q

Where is the position of the incisal edge of the mandibular canine relative to the long axis of the tooth?

A

it is lingual to the long axis of the tooth

76
Q

Which tooth has the most pronounced developmental marginal groove of any maxillary tooth?

A

maxillary first premolar

77
Q

Why is it difficult to adapt a matrix band to the maxillary first premolar?

A

mesial concavity on the crown that extends to the root

78
Q

What is the shape of the cervical cross-section of the maxillary first premolar?

A

kidney shaped

79
Q

In non-molar teeth, which tooth is most likely to have 3 roots?

A

maxillary first premolar

80
Q

True or False: The facial cusp of the maxillary first premolar is offset to the distal.

A

True, it has a longer mesiofacial cusp ridge than the distofacial ridge.

Dental Boards (2 decks)

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