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OSCE > osce teeth > Flashcards

osce teeth Flashcards

1
Q

Has one or two lingual cusps more closely approximating the buccal cusp in height

A

lower second PM

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2
Q

pulp cavity tapers evenly along the entire length until reaching the apical constriction

A

upper central incisor

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3
Q

Cervical region undulates on the mesial and distal sides of the tooth, mesial undulation being greater than the distal.

A

upper central incisor

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4
Q

Small groove often runs from the mesial pit onto the mesio lingual surface

A

lower first PM

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5
Q

Often has enamel extending further apically on the labial side than the lingual side

A

lower canine

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6
Q

Crown appears flat and almost symmetrical.

A

lower central

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7
Q

Occlusal surface is more symmetrical with only slight mesial displacement of the lingual cusp

A

upper second PM

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8
Q

Incisal edges shows three mammelons

A

upper central incisor

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9
Q

Slightly rounded mesio incisal angle and a short distal surface with a pronounced rounding of the disto incisal angle.

A

upper lateral incisor

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10
Q

Triangular occlusal surface

A

upper second molar

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11
Q

The distal marginal ridge is more cervical than the mesial marginal ridge

A

upper second PM

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12
Q

Longer diagonal extending from the mesiobuccal to the distopalatal cusp and emphasised by the presence of a strong ridge of enamel called the oblique ridge. On each side of the oblique ridge there is a fissure.

A

upper first molar

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13
Q

In the centre of the crown, it deepens further to form a pit. Another fissure runs mesiodistally and starts near the mesial marginal ridge to cross the central fossa and divide into two branches which pass on each side of the small distal cusp.

A

lower first molar

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14
Q

Mesial border is shorter and less steeply inclined than the distal border.

A

upper canine

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15
Q

Lingual surface is slightly narrower and much lower than the buccal surface

A

lower first PM

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16
Q

Amelocemental junction is at the same level on labial and lingual side of the crown.

A

upper canine

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17
Q

Two roots, one mesial and one distal. Both are strongly compressed mesiodistally and may show a distal curvature. These features are most pronounced on the mesial root. Mesial root is usually curved, grooved and broader than the distal root.

A

lower first molar

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18
Q

Viewed from the incisal edge the crown is slightly twisted on the root to follow the dental arch.

A

lower lateral

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19
Q

There is no developmental depression on the mesial surface of the crown

A

upper second PM

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20
Q

Mesial contact is located more incisally. Distal contact is located at the centre of the middle third of the crown.

A

upper canine

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21
Q

Mesial root has two canals, one buccal and one lingual. Single root in distal canal, wide and less curved.

A

lower first molar

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22
Q

Distal marginal ridge is more cervical than the mesial marginal ridge

A

lower second PM

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23
Q

The palatal surface is slightly lower and much narrower than the buccal surface

A

upper first PM

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24
Q

buccal surfaces of the crown and the root in a straight line

A

upper PMs

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25
Q

Well defined developmental groove in the enamel of the mesial marginal ridge which is in alignment with the developmental depression on the mesial surface of the root but is not usually connected with it. The groove is continuous with the central groove of the occlusal surface

A

upper first PM

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26
Q

Fissure pattern is plus shaped.

A

lower second molar

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27
Q

buccal cusp inclined lingually to produce a curved buccal profile

A

lower PMs

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28
Q

flat mesial surface

A

upper second PM

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29
Q

The apical part of the root usually has a marked distal curvature

A

upper first PM

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30
Q

Distal root is not visible from the mesial aspect. Mesial root is curved, grooved or broader than the distal root

A

lower first molar

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31
Q

Convex shape, middle region is heightened to a prominent ridge running longitudinally to the end tip of the cusp

A

upper canine

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32
Q

Mesial and distal marginal ridges border the concavity, and the lingual portion of the incisal edge and cingulum.

A

upper central incisor

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33
Q

Lingual cusp is much larger than that of the first and is displaced mesially

A

lower second PM

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34
Q

When viewed from above, the line of the incisal edge is perpendicular to a line bisecting the root. The distoincisal angle is marginally rounder than the mesio incisal angle.

A

lower central

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35
Q

The lingual surface is concave, with mesial and distal marginal ridges which meet at the neck of the tooth to form a convex cingulum.

A

upper central incisor

36
Q

a more rounded incisal edge and both mesial and distal corners are rounded.

A

upper lateral incisor

37
Q

Flatter mesiodistally and appears more narrow and slender compared to its antagonist

A

lower canine

38
Q

Lingual topography gives a scooplike form to the crown.

A

upper central incisor

39
Q

Mesial surface has a right angled bend. One arm runs toward the mesial surface, but does not continue onto it. The other runs toward and on to the buccal surface.

A

upper first molar

40
Q

Palatal root is often partially fused with either of the buccal roots

A

upper second PM

41
Q

From the mesial or distal aspect, the crown is wedge shaped and leans lingually. The cervical undulation is greater on the mesial surface.

A

lower lateral

42
Q

Fissure on the distal side runs parallel to the oblique ridge and continues on to the palatal surface

A

upper first molar

43
Q

Root is irregularly oval. Usually slightly grooved both mesially and distally.

A

upper canine

44
Q

most heavily restored root in adult dentition

A

lower first molar

45
Q

There may be two lingual cusps, and if so the mesial cusp is the larger

A

lower second PM

46
Q

Concave lingual surface. Often divided into two shallow fossae by a ridge connecting the cusp.

A

upper canine

47
Q

Less bulky and more slender.

A

upper lateral incisor

48
Q

Convex distal surface

A

upper first PM

49
Q

Diamond shaped occlusal surface. Mesiopalatal cusp is the largest, the distopalatal is the smallest.

A

upper first molar

50
Q

Labial surface is inclined lingually bringing the cusp into lingual position.

A

lower canine

51
Q

Mesial canals are closer together, incidence of two canals is less. If the distal root has one canal, the distal canal orifice is larger and located distal to the centre of the crown

A

lower second molar

52
Q

The cusps are separated by a sharp fissure running mesiodistally, which does not reach the distal marginal ridge but often extends across the mesial marginal ridge on to the mesial surface

A

upper first PM

53
Q

Buccal surface is inclined strongly lingually, so that its tip lies almost above the centre of the tooth

A

lower first PM

54
Q

Lingual surface has two pronounced marginal ridges. Sometimes, where the ridges meet at the cervix, they enclose a depression or fossa. Deposits can accumulate here and lead to caries.
Crown is wedge shaped when viewed mesially or distally. As with the central incisor, the cervical undulation is greater on the mesial surface.

A

upper lateral incisor

55
Q

Stout crown with a broad diamond shaped surface and pointed cusp.

A

upper canine

56
Q

Lingual root is in the same plane as the disto buccal root.

A

upper first molar

57
Q

Two buccal cusps are similar in circumference and height, but the mesial one is larger.

A

upper first molar

58
Q

Distal fossa is generally larger than the mesial

A

lower second PM

59
Q

The mesial surface is convex

A

upper second PM

60
Q

Ridges are less prominent, the mesial border of the cusp is shorter and less steely inclined than the distal border.

A

lower canine

61
Q

The outline form of the root of the cervical level is typically triangular with rounded corners

A

upper central incisor

62
Q

More than 50% have two roots – one buccal and one lingual. Mesial surface is more deeply grooved than the distal and shows a concavity in the cervical region.

A

upper first PM

63
Q

The curvature of the cervical margin on the distal surface is less marked than that on the mesial surface

A

upper canine

64
Q

The buccal surface is larger than the lingual surface, and is lingually inclined.

A

lower first molar

65
Q

Cervical region is narrowed mesiodistally and gives a long mesial surface

A

upper lateral incisor

66
Q

Contact point with the canine takes the form of a smaller semi circular arc compared with a broad contact area distally where it contacts the second premolar

A

lower first PM

67
Q

Oval occlusal surface, buccal cusp is wider and higher than the lingual cusp. Marked mesial displacement of the lingual cusp. The two cusps are joined by marginal ridges, of which the mesial is higher

A

upper first PM

68
Q

Crown set in straight line with the root when viewed from the proximal side.

A

upper canine

69
Q

High and narrow crown set an angle to the root, producing a more convex labial profile from cusp to apex.

A

lower canine

70
Q

Cone shaped root that is round in cross section.

A

upper central incisor

71
Q

Only 15% have two roots, and the single root is usually deeply grooved

A

upper second PM

72
Q

Failure to consider pulp morphology when preparing the canals may result in inappropriate root canal treatment.

A

upper first molar

73
Q

Pulp chamber is centred within the dentine of the root. Narrowest part of the canal is found to be at the apical constriction

A

upper central incisor

74
Q

Tubercle of carabelli may be present on the palatal surface of the mesio palatal cusp. Found on 60% of all maxillary first molars.

A

upper first molar

75
Q

a second mesiobuccal canal which is present in over 60% of cases

A

upper first molar

76
Q

Groove starting on the buccal surface deepens into transverse fissure across the occlusal surface and ends as a groove on the lingual surface

A

lower first molar

77
Q

Buccal surface usually has a pit with an increased risk of caries.

A

lower first molar

78
Q

Much greater difference in buccal and lingual cusp height

A

lower first PM

79
Q

Crown is wedge shaped and leans lingually

A

upper central incisor

80
Q

Lingual cusps are highest, but the mesio buccal cusp is the largest.

A

lower second molar

81
Q

Mesio incisal edge is sharp and the distoincisal edge more rounded.

A

upper central incisor

82
Q

Two cusps are similar in width and height, due to a reduction in the size of the buccal cusp.

A

upper second PM

83
Q

Disto palatal cusp is greatly reduced or absent

A

upper second PM

84
Q

Crown is the largest of the four incisors being as almost as wide as it is long. Smooth surface and slightly convex.

A

upper central incisor

85
Q

Mesial marginal ridge is more cervical than the distal marginal ridge

A

lower first PM

86
Q

. Pulp cavity is widest about the cervical level.

A

upper central incisor

87
Q

Roots are less divergent than those of the lower first molar and may be fused.

A

lower second molar

OSCE (25 decks)

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