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dental anatomy > max pre molars > Flashcards

max pre molars Flashcards

1
Q

haxagon

A

max premolar 1

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2
Q

oval

A

max premolar 2

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3
Q

diamond

A

mand pre molar 1

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4
Q

square

A

mand pre molar 2

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5
Q

Curve of Spee (called also von Spee’s curve or Spee’s curvature) is defined as the

A

curvature of the mandibular occlusal plane beginning at the tip of the lower incisors and following the buccal cusps of the posterior teeth, continuing to the terminal molar.

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6
Q

buccal and palatal root

A

1st max pre molar

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7
Q

single root

A

incisor

canines

pre molars

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8
Q

3 types of roots of upper molars

A

mesiobuccal roots

distobuccal roots

palatal roots

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9
Q

mandible single rooted teeth

A

incisors

pre molars

canine

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10
Q

lower molars

A

mesial and distal roots

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11
Q

axial inclinations of max second premolars

A

toward distal from buccal and lingual view

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12
Q

axial inclination of max second premolars

A

toward lingual from

distal and mesial view

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13
Q
A
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14
Q

Resembles maxillary canine

A

Maxillary First Premolar

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15
Q

tf max First Premolar resembles a canine by crown and root are longer

A

f crown and root are shorter

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16
Q

Mesial portion of Maxillary First Premolar

A

gingival portion ;; concave

cervical portion; convex

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17
Q

tf in max 1st pre molars ;Mesial ridge (slope) of B cusp longer than distal slope

A

t

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18
Q

bell shaped crown

A

max 1st pre molar

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19
Q

max 1st premolar

A

Prominent buccal ridge

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20
Q

tf max 1st pre molar only has prominent MB line angle

A

f

prominent MB and DB line angles

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21
Q

3 facial lobes

A

max 1st pre molar

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22
Q

tf

there are developmental depressions between three facial lobes on max 1st pre molar

A

t

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23
Q

correct the statement

max 1st pre-molar

Buccal CEJ curves evenly toward the apex in a concaver manner

A

Buccal CEJ curves evenly toward the apex in a convex manner

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24
Q

tf

max 1st pre molar

Proximal contact level width has less width than at CEJ level (

A

F

Proximal contact level width much wider than at CEJ level (

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25
Q

tf max 1st pre-molar

Cusp tip located just distal to center on the crown

A

T

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26
Q

slight concavity ; smoothly convex on max 1st pre-molar

A

Mesial slope has sl. concavity Distal slope smoothly convex

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27
Q

tf

max 1st pre-molar lingual aspect is Smaller in all dimensions than the buccal aspect

A

T

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28
Q

tf only the crown converge toward lingual

on the lingual view of max 1st pre molar

A

f

Both crown and root converge toward lingual

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29
Q

max 1st pre molar has depressions and ridge on lingual surface

A

F

Lingual surface is smooth

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30
Q

tf Mesial and distal slopes of L cusp approximately form obtuse angle of max 1st pre molar.

A

f

Mesial and distal slopes of L cusp approximately form right angle

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31
Q

Lingual cusp of max 1st pre molar well developed but longer, wider, and bigger than buccal cusp

A

f

Lingual cusp well developed but smaller, narrower, and shorter than buccal cusp

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32
Q

characteristic of max 1st pre molar

A

Lingual cusp is offset toward the mesial

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33
Q

trapezoidal outline shape

A

mesial aspect of max pre molar

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34
Q

tf max 1st pre molar lingual cusp longer than Buccal cusp

A

Buccal cusp longer than lingual cusp

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35
Q

tf max 1st pre molar

Occlusal table much smaller than buccolingual diameter of crown

A

t

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36
Q

tf Triangular ridges of each cusp aren’t visible

of max 1st pre- molar

A

Triangular ridges of each cusp visible on mesial side of max 1st pre molar

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37
Q

tf

on max 1st premolar B and L cusp tips well within confines of root trunk

A

T

B and L cusp tips well within confines of root trunk

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38
Q

tf max 1st pre molar only has 1 root

A

f has 2 buccal and lingual

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39
Q

longer root with sharper apex on max 1st pre-molar

A

buccal root of max 1s pre-molar

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40
Q

on max 1st pre molar

Root trunk is thin and usually less than half the root length

A

on max 1st pre molar

Root trunk broad and usually greater than half the root length

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41
Q

Mesial marginal ridge perpendicular to long axis,

A

max 1st pre molar

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42
Q

on max 1st premolar

A

mesial marginal ridge interrupted by mesial marginal groove

43
Q

Mesial concavity on max 1st pre molar

A

middle of the cervical third extending down to the root bifurcation

44
Q

tf on max 1st pre molar distal aspect is smoother mesial aspect

A

t

45
Q

Marginal ridge perpendicular to long axis

A

distal aspect of max 1st pre molar

46
Q

No marginal groove or developmental depression

A

on distal side of max 1st pre molar

47
Q

occlusalcervical surface shorter;

mesial or distal of max 1st pre molar

A

distal side

48
Q

more occlusal surface visible of mesial or distal view of max 1st pre molar

A

Distal

49
Q

slight depression on root

A

distal aspect of max 1st pre molar

50
Q

mesial vs distal CEJ curvature towards the occlusal

on max 1st pre molar

A

less curved on the distal

51
Q

outline form of occlusal of max 1st premolar

A

Hexagonal outline form

52
Q

tf occlusal of max 1st pre molar is symmetric

A

f

assymetric

53
Q

wider buccolingually than mesiodistally

A

max 1st pre molar occlusal surface

54
Q

tf

max 1st premolar have Two well-developed cusps with distinct groove pattern

A

t

55
Q

Which of the following isnt a distinct groove pattern of

max 1st pre molar

MB

DB

C

M

ML

A

ML

56
Q

4 developmental lobes

A

max 1st premolar

M,d

Lingual, mid facial

57
Q

central grove separates

A

2 triangular ridges on max 1st pre molar

58
Q

tf max 1st premolar only has mesia marginal ridge

A

f

mesial and distal marginal ridge

59
Q

tf pits on max 1st pre molar

exist on the triangular ridges

A

f

on triangular fossae

60
Q

tf on max 1st pre molar

B & L heights of contour distal to center

A

f

B & L heights of contour mesial to center

61
Q

line angles on max 1st pre molar

A

MB and DB

62
Q

tf there is no buccal ridge on max 1st pre molar

A

F

its very prominent

63
Q

on max 1st pre molar M and D contacts

A

facial to center

64
Q

tf

on max 1st pre molar, Buccal cusp tip is distal to center with mesial slope longer than distal

A

t

65
Q

tf

mesial slope longer than distal on max 1st pre molar(buccal side)

A

t

66
Q

tf

on max 1st pre molar Buccal cusp ridges form straight line

A

f

Buccal cusp ridges form diagonal line

67
Q

on max 1st pre molar which ridge is shorter

mesial or distal

A

Mesial

68
Q

The only premolar that usually has two roots

A

max 1st pre molar

69
Q

which root is longer in max 1st pre molar

buccal or lingual

A

buccal

70
Q

Pulp chamber —– to B and L pulp canals

in max 1st pre molar

A

Pulp chamber occlusal to B and L pulp canals

71
Q

tf only one pulp horn on the max 1st premolar

A

f 1 per cusp in max 1st pre molar

72
Q

max 1st pre molar

A

kidney shaped cervical cross section

73
Q

max 1st pre molar is more bellshaped than max 2ns pre molar

A

t

74
Q

tf max 2nd pre molar buccal cusp shorter than max 1st pre molar

A

t

75
Q

entire crown may appear slightly shorter and narrower but average dimensions are nearly the same)

A

max 1st and 2nd pre molar

76
Q

tf mesial marginal ridge> distal marginal ridge

(of buccal cusp)(on max 2nd pre molar)

A

f

<

77
Q

tf max pre molar 2 Less angular than P1

A

t

78
Q

tf

more prominent facial ridge of max 2nd pre molar than 1st premolar

A

f

less prominent

79
Q

tf max 2nd premolar has

more rounded appearance of MB and DB line angles

than max 1st premolar

A

t

80
Q

tf max 2nd premolar has a sharper Buccal cusp tip than max 1st premolar

A

F

not as sharp

81
Q

tf max 1st pre molar has more curved CEJ than max 2nd premolar

A

T

82
Q

max 2nd pre molar

Root —– and smoothly —–

A

Root conical and smoothly convex

83
Q

max 2nd pre molar same size

A

lingual and buccal cusp

; no occlusal surface visible

84
Q

max 2nd pre molar

Smoothly —–crown and root; —– taper to lingual than teeth anterior to it

A

Smoothly convex crown and root; less taper to lingual than teeth anterior to it

85
Q

lingual aspect of max 2nd pre molar

L cusp tip slightly ——- to center

A

L cusp tip slightly mesial to center

86
Q

tf on mesial aspect of max 2nd pre molar

B > L cusps

A

f

B and L cusps are approximately the same size

87
Q

single root

A

max 2nd pre molar

88
Q

tf on max 2nd pre molar

there is mesial marginal groove but

No mesial concavity or developmental depression on crown

A

f

no mesial marginal ridge

89
Q

almost flat

A

CEJ of max 2nd premlar

(distal view)

90
Q

tf max 2nd pre molar has thin occlusal table

A

F

wide

91
Q

Smoothly convex

A

distal aspect of max second pre molar

92
Q

tf

More of occlusal surface is visible from mesial view than distal view of max 2nd pre molar

A

F

distal view has more occlusal table visible

93
Q

round and ovoid

A

occlusal view of max 2nd premolar

94
Q

line angles

A

rounded on max 2nd pre molar

95
Q

smooth outline

A

buccal outline of max 2nd pre molar(occlusal aspect)

96
Q

Wider occlusal table (B-L)

A

occlusal aspect of max 2nd pre molar

97
Q

short central groove with close M and D triangular fossa

A

occlusal aspect of mx 2nd premolar

compared to 1st

98
Q

B and L cusps nearly centered on buccolingual bisecting line

A

max 2nd pre molar

99
Q

tf max 2nd pre molar crown appears bilaterally symmetrical

A

t

100
Q

tf max 2nd pre molar only can have 1 pulp canal

A

F

can have 2

101
Q

no major root concavities

A

on max 2nd pre molar

102
Q

ovoid

A

cross section max 2nd pre molar

103
Q
A

dental anatomy (12 decks)

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