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Dental Anatomy > Quiz 2 Review > Flashcards

Quiz 2 Review Flashcards

1
Q

What is the difference in size and crown dimension between primary and permanent teeth?

A

Primary teeth are smaller in size and crown dimension

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2
Q

Do primary or permanent teeth have more prominent cervical ridges?

A

Primary

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3
Q

T/F Primary teeth are lighter in color and are narrower at their necks than permanent teeth

A

True

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4
Q

What is the difference between primary and permanent molar roots?

A

Primary molar roots are more widely flared

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5
Q

How do the roots of primary anterior teeth compare to their respective crowns?

A

narrower and longer

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6
Q

A narrow root an wide crown causes what anatomical structure to differ?

A

Cervical area at the CEJ

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7
Q

Is the mesiodistal measurement lesser/greater than the faciolingual measurement on a primary maxillary central incisor?

A

Mesiodistal is greater than faciolingual

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8
Q

Where is the incisal ridge centered over on the primary maxillary central incisor?

A

the main bulk of the crown

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9
Q

Where is there a curvature on the primary maxillary central incisor’s incisal ridge?

A

lingual on the distal portion

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10
Q

Which surface is wider and smoother on the primary maxillary central incisor: facial or lingual?

A

facial

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11
Q

Where does the lingual surface on a primary maxillary central incisor taper towards?

A

cingulum

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12
Q

What surfaces are wide on a a primary maxillary central incisor to aid in contract with adjoining teeth?

A

mesial and distal

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13
Q

What is the crown shape of a primary maxillary canine?

A

diamon/arrow

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14
Q

The cusp portion on a primary maxillary canine is slightly _______ of the center of the tooth

A

distal

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15
Q

Which cuspal ridge is longer on a primary maxillary canine: mesial or distal?

A

Mesial cuspal ridge is longer than distal cuspal ridge

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16
Q

T/F the proximal contact locations are at different levels on a primary maxillary canine

A

False - they are at the same level

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17
Q

What side is the facial ridge located on a primary maxillary canine?

A

slightly on the distal half

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18
Q

The root length is ______ longer than the crown on a primary maxillary canine

A

2x

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19
Q

Where does the root curve on a primary maxillary canine?

A

towards the distal

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20
Q

Where does the crown taper towards on a primary maxillary first molar?

A

occlusal

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21
Q

Which cusp is taller and more pointed on a primary maxillary first molar: mesiolingual or mesiofacial?

A

mesiolingual

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22
Q

T/F you can see a lingually positioned mesial marginal ridge groove on a primary maxillary first molar from a mesial view?

A

True

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23
Q

Is the facial cervical ridge on a primary maxillary first molar convex or concave?

A

convex

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24
Q

Where is the cervical line curvature on a primary maxillary first molar?

A

occlusal curvature on the facial half of the crown

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25
Q

Where is the proximal contact located on a primary maxillary first molar?

A

faciolingual center of the tooth

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26
Q

How many roots can be seen on mesial view of a primary maxillary first molar?

A

2; the mesiofacial root is super-imposed over the distofacial root

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27
Q

The ________ inclines out beyond the lingual confines of the crown and curves ________ in the ________ one-third on a primary maxillary first molar

A

The lingual root inclines out beyond the lingual confines of the crown and curves facially in the apical one third

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28
Q

Where is the bifurcation between the mesiofacial and lingual roots on a primary maxillary first molar?

A

at the cervical line

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29
Q

What are the 5 cusps on a primary second molar; arranged largest to smallest?

A
  1. mesiolingual
  2. mesiofcial
  3. distofaical
  4. distolingual
  5. 5th Cusp of Carabelli
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30
Q

From an occlusal view, what is the crown shape of a primary maxillary second molar?

A

somewhat rhomboidal - shows distal crown convergence

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31
Q

Which tooth has a larger oblique ridge: primary maxillary second molar or primary maxillary first molar?

A

primary maxillary second molar

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32
Q

On a primary maxillary second molar there is a distinct _________ ridge involving the _________ ridges of the _________ positioned cusps

A

There is a distinct transverse ridge involving the triangular ridges of the mesially positioned cusps

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33
Q

What are the major fossa of a primary maxillary second molar?

A

central and distal

34
Q

What are the minor fossa of a primary maxillary second molar?

A

mesial triangular

distal triangular

35
Q

On a primary maxillary second molar, what is the distal oblique groove called when graveling on the lingual surface?

A

lingual developmental groove

36
Q

On a primary maxillary second molar the __________ groove of the __________ ridge cross the oblique ridge and connects the ________ pit with the _______ pit.

A

The transverse groove of the oblique ridge crosses the oblique ridge and connects the central pit with the distal pit

37
Q

How many cusps are visible from a distal view of the primary mandibular first molar?

A

4

38
Q

How many roots are visible from a distal view of the primary mandibular first molar?

A

2

39
Q

Where does the distal root of a primary mandibular first molar converge towards?

A

apex

40
Q

What surface has a developmental root depression on a primary mandibular first molar?

A

distal

41
Q

Where to maxillary lateral inciors ectopically erupt towards?

A

lingual side

42
Q

Where to maxillary canines ectopically erupt towards?

A

facial side

43
Q

What teeth most commonly exhibit transposition?

A

maxillary canines

44
Q

What is it called when a tooth is located in a different position from where it is supposed to be?

A

transposition

45
Q

What is ectopic eruption?

A

when a tooth erupts or emerges in the wrong position within the arch

46
Q

What is the most commonly rotated tooth?

A

maxillary second premolars (followed by maxillary incisors and maxillary first premolars)

47
Q

What type of teeth exhibit dens-in-dente (dens invaginatus)?

A

permanent teeth

48
Q

What occurs in dens-in-dente?

A
  1. outer enamel surface is folded inward

2. tissue is wrapped

49
Q

What are the two types of dens invaginatus?

A

coronal and radicular

50
Q

Dens invaginatus most likely occurs because of the what structure infolding during development?

A

dental papilla

51
Q

What is the most common tooth to display dens-in-dente?

A

permanent maxillary lateral incisor

52
Q

What is dentinogenesis imperfecta?

A

discoloring or translucent appearance of primary or permanent teeth

53
Q

Radiographically, patients with dentinogenesis imperfecta lack what tooth structures?

A

pulp chambers and root canal

54
Q

What is the shape of the crown outline on a permanent maxillary central incisor?

A

trapezoidal, shorter at cervix

55
Q

On a permanent maxillary central incisor, is the crown widths at contact areas greater or less than at cervix

A

crown width at contact areas are greater than at cervix

56
Q

What are the following measurements on a permanent maxillary central incisor?

  1. cervicoincisal length
  2. mesiodistal width
  3. faciolingual depth
A
  1. cervicoincisal length: 10.5 mm
  2. mesiodistal width: 8.5 mm
  3. faciolingual depth: 7.0 mm
57
Q

What are the lingual fossa boundaries on a permanent maxillary central incisor?

A

linguo-incisal ridge
mesial and distal marginal ridges
cingulum

58
Q

What is the shape of the lingual fossa on a permanent maxillary central incisor?

A

trapezoidal

59
Q

On the lingual aspect of a permanent maxillary central incisor, how is the cervical outline positioned in comparison to the facial aspect?

A

apically positioned, away from the incisal

60
Q

What is described as wide, shallow, and dish-shaped in depression on the incisal 1/2 of a permanent maxillary central incisor?

A

lingual fossa

61
Q

Where is the cingulum located on a permanent maxillary central incisor?

A

cervical 1/2 of the crown

62
Q

The cingulum of a permanent maxillary central incisor has 2 ridges that impinge where?

A

lingual fossa at the middle third

63
Q

Where is the greatest curvature of the cingulum on a permanent maxillary central incisor?

A

distal to the mesiodistal long axis bisector of the crown

64
Q

Describe the lingual fossa on a permanent maxillary lateral incisor

A

deep, triangular, cup-shaped

65
Q

Where is the lingual fossa located on a permanent maxillary lateral incisor?

A

incisal 2/3 of the lingual surface of hte crown

66
Q

What are the lingual fossa boundaries on a permanent maxillary lateral incisor?

A

linguo-incisal ridge
mesial and distal marginal ridges
cingulum

67
Q

Where is the cingulum on a permanent maxillary lateral incisor limited to?

A

cervical 1/3 of the crown and the mesial and distal marginal ridges

68
Q

Which is larger: permanent maxillary central or lateral incisor?

A

central incisor

69
Q

Which is more angular: permanent maxillary central or lateral incisor?

A

central incisor

70
Q

Which tooth as a curved root pointed towards the distal: permanent maxillary central or lateral incisor?

A

lateral incisor

71
Q

Which tooth a convex incisal third of the facial surface: permanent maxillary central or lateral incisor?

A

lateral incisor

72
Q

What is one of the most variable permanent teeth?

A

permanent maxillary lateral incisor

73
Q

The crests of the cingulum on the permanent maxillary incisors is off-set towards what side?

A

distal

74
Q

What are the shapes of the lingual fossa on a permanent maxillary central and lateral incisor?

A

central: trapezoidal
lateral: triangular

75
Q

From an incisial view where are the contact areas on permanent maxillary central and lateral incisors?

A

faciolingually

76
Q

From a proximal view, where is the incisial edge centered over on both permanent maxillary central and lateral incisors?

A

incisial edge is centered over the crest of curvature of te CEJ and the main body of their respective roots

77
Q

From the lingual view, does a permanent maxillary central or lingual incisor have fissured lingual pit?

A

lateral incisor

78
Q

What is the crown shape of a permanent mandibular canine?

A

diamond

79
Q

Which is longer on a permanent mandibular canine: faciolingual or mesiodistal dimension?

A

faciolingual measurement

80
Q

Which side of the crown on a permanent mandibular canine is bulkier: facial or lingual?

A

facial is bulkier than lingual (tapers towards the lingual)

81
Q

Which side of the crown on a permanent mandibular canine is bulkier: mesial or distal?

A

mesial is larger than distal

Dental Anatomy (12 decks)

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