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Flashcards in max molars Deck (176):
1

Largest crown in mouth

Maxillary First Molar

2

anchor tooth of maxillary dentition

Maxillary First Molar

3

Maxillary First Molar

presents basic pattern for permanent maxillary molars

4

type 5  and 6 vertucci

A image thumb
5

vertucci 7 and 8

A image thumb
6

(59.87%) were Vertucci type 4

max 1st molar

7

----- have some of the highest failure rates in endodontic treatment due to the presence of a second canal in the mesiobuccal root that the clinician fails to detect, debride and obturate.

maxillary molars have some of the highest failure rates in endodontic treatment due to the presence of a second canal in the mesiobuccal root that the clinician fails to detect, debride and obturate.

8

Carabelli Cusp usually absent

in Max second molar

9

max second molar --> different from 1st molar

size is smaller with the three roots closer together

10

Trapezoidal crown outline form

Maxillary First Molar(buccal)

11

Crown slightly shorter occlusocervically than teeth anterior to it

max 1st molar

(buccal)

12

tf 

Maxillary First Molar  have Two buccal cusps separated by buccal groove

t

13

buccal groove  of max 1st molar

extends halfway up the buccal side

14

deepest part of depression on buccal surface of 

Maxillary First Molar

ocasonal pit

15

which cusp is larger on buccal side of Maxillary First Molar

MB or DB

MB cusp

16

sharper and longer cusp on buccal side of

Maxillary First Molar

MB or DB

DB

17

MB cusp slopes more or less inclined than DB

(Buccal (Facial) Aspect: of max 1st molar) 

less

forms an obtuse angle

18

forms 90 degrees

DB cusps on max 1st pre molar

19

Facial (buccal) cervical ridge

passes mesiodistally across cervical third of crown

(buccal aspect of max 1st molar)

20

is convex and flatter

mesial vs distal profile of max 1st molar

mesial profile of max 1st molar

21

Distal crown profile convex with concavity in cervical third continuing on root

max 1st molar

22

tf Buccal CEJ of max 1st molar

more convex than teeth anterior to it

f

Buccal CEJ much flatter than teeth anterior to it

23

CEJ of Maxillary First Molar

may dip toward area of buccal furcation

24

Maxillary First Molar(buccal view)

---- roots visible from common root trunk;

Maxillary First Molar

25

tf on max 1st molar

root system wider mesiodistally than Crown

Crown wider mesiodistally than root system

26

Root trunk in occlusal third of root (approx. 4mm)

max 1st molar

A image thumb
27

Facial developmental groove and furcation in line

max 1st molar

28

Maxillary First Molar

MB and DB roots may have ----- inclination

MB and DB roots may have distal inclination

29

MB and DB roots

converge at apical third

30

----- root seen between two buccal roots of max 1st molar

lingual (palatal)

31

MB root inclination

max 1st molar

90 degree

32

DB root inclinations

obtuse 

in max 1st molar

33

tf

MB and DB roots of max 1st molar are wider mesiodistally than buccolingually

f

MB and DB roots are wider buccolingually than mesiodistally;

34

tf

L(P) root of max 1st molar wider mesiodistally than buccolingually

t

35

which direction does crown diverge on lingual surface of

max 1st molar

to lingual

36

tf in lingual surface which cusp is the largest

 

ML of max 1st molar

37

extends 3/5 of entire width mesiodistally)

ML cusp of max first molar

38

Cusp of Carabelli (fifth cusp) arises from the ------ surface of the ML cusp on max 1st molar

Cusp of Carabelli (fifth cusp) arises from the lingual surface of the ML cusp

39

small and rounded

DL cusp of max 1st molar

40

distolingual groove  of max 1st molar

separate Two lingual cusps

41

terminate in a lingual pit in the central portion of the lingual surface in max 1st molar

distolingual groove

42

Lingual CEJ of max 1st molar

straight to slightly convex

43

lingual root is broader mesiodistally than buccolingually

max 1st molar

44

Dominant (largest) lingual root has shallow depression along cervical 2/3 of root and across CEJ

max 1st molar

45

tf from lingual view of max 1st molar

mesial outline of MB and DB root seen

f

Entire mesial outline of MB root seen but only partial view of DB root

46

mesial aspect of max 1st molar;

----- ------ ridge connects MB and ML cusps;

Mesial marginal ridge connects MB and ML cusps;

47

max 1st molar

Crown has trapezoidal outline form

from mesial side

48

Buccal profile of max 1st molar may appear slightly -----

in middle third (occlusal to cervical ridge)

Buccal profile may appear slightly concave in middle third (occlusal to cervical ridge)

49

Lingual profile uniformly convex with maximum convexity in middle third  from mesial view

max 1st molar

50

max 1st molar mesial

CEJ shallow (minimum curvature) and irregularly curved toward the occlusal

51

Root trunk of max 1st molar broad 

faciolingually

52

Faciolingual root spread is ---- than faciolingual diameter of crown

max 1st molar mesial view

Faciolingual root spread is broader than faciolingual diameter of crown

53

MB root broad ----- and projects straight beyond crown surface slightly toward the ----

max 1st molar mesial

MB root broad buccolingually and projects straight beyond crown surface slightly toward the buccal

54

tf on max 1st molar from mesial view

Developmental depression present across 1/3 of MB root

f

Developmental depression present across 2/3 of MB root

55

longest and shaped like a banana

lingual root of max 1st molar

56

lingual root of max 1st molar

first extends lingually beyond crown outline,

then curves in toward the buccal

57

which furcation is visible of max 1st molar

ML furcation

58

max 1st molar mesial view

--- cusp more centered over root trunk than -- cusp

ML cusp more centered over root trunk than MF cusp

59

Crown is wider and taller on the mesial from mesial view

max 1st molar

60

tf from mesial view of max 1st molar only 2 cusps are visible 

F

1. MB (MF) cusp 2. ML cusp 3. Fifth (Carabelli) cusp

61

mesial view of max 1st molar

roots present

1. Lingual (Palatal) root 2. 2. MB (MF) root

62

tf Distal marginal ridge longer than mesial marginal ridge buccolingually

max 1st molar

Distal marginal ridge shorter than mesial marginal ridge buccolingually

63

tf more occlusal surface visible from distal view than mesial view of max 1sst molar

T

64

max 1st molar

Buccal surface more visible due to rhomboidal crown form (and D taper)

65

Proximal contact near crown center

distal aspect of max 1st molar

66

which cusp is center more over root of max 1st molar

DL or DF

• DL cusp more centered over the root than DF cusp

67

tf DB root of max 1st molar is smaller than MB root

t

68

total number of roots visible from distal side of max 1st molar

3

69

DL furcation visible -mm from CEJ

max 1st molar

DL furcation visible 5mm from CEJ

70

Distinct -- concavity in cervical third of crown and root of max 1st molar

Distinct DF concavity in cervical third of crown and root

71

occlusal of max 1st molar

Rhomboid outline form;

72

line angle acute of max 1st molar

MB and DL

73

line nagle obtuse of max 1st molar 

(occlusal view)

ML and DB line angles

 

74

Wider buccolingually than mesiodistally

max 1st molar 

occlusal

75

which side is wider buccolingually

mesia or distal half of max 1st molar

(mesial half of tooth wider buccolingually than distal half

76

on max 1st molar

which is wider buccolingually and more prominent

 Mesial marginal ridge or  distal marginal ridge ?

• Mesial marginal ridge wider than distal marginal ridge buccolingually and more prominent

77

oblique ridge  of max 1st molar

at same level occlusocervically as MMR & DMR)

78

smallest cusp of max 1st molar and not part of occlusal surface

Carabelli

79

arrange the following of max 1st molar

ML DL DB MB Carabelli

ML>MB>DL>DB>Carabelli

80

more centered on tooth than any other cusp

and has two triangular ridges

of max 1st molar

ML cusp

81

talon of max 1st molr

DL cusp

82

Trigon of max 1st molar

MB ML DB cusp

83

Primary cusp triangle centered over root trunk

max 1st molar

84

Oblique ridge (type of transverse ridge)  of max 1st molar

extends from ML cusp to DB cusp

85

how many total fossa are on occlusal of max 1st molar

4

86

(central and distal

major 2 fossa of max 1st molar

87

mesial triangular fossa and distal triangular fossa

2 minor fossa of max 1st molar

88

lingual aspect of max 1st molar

grooves

1.Lingual developmental groove

2. Developmental groove of the fifth cusp

A image thumb
89

1.Central developmental groove

2. Facial (buccal) developmental groove

3. Transverse groove of the oblique ridge

4. Distal oblique developmental groove

max 1st molar

A image thumb
90

root  of max 1st molar

Root trunk trifurcated forming 3 root branches: 2 buccal and 1 lingual

91

largest and longest root of max 1st molar

lingual root

92

inclines lingually;

lingual root of  max 1st molar

93

wider mesiodistally than buccolingually

lingual root of max 1st molar

94

shallow depression on lingual surface of root

of max 1st molar

95

cervical 2/3

max 1st molar lingual root

96

wider buccolingually than mesiodistally

MB root of max 1st molar

97

second largest and longest root of maxillary 1st molar

MB root

98

two pulp canals: one buccal, one lingual

max 1st molar

99

smallest and shortest

DB root of max 1st molar

100

slightly wider buccolingually than mesiodistally;

max 1st molar ; DB root

101

inclines distally and buccally

max 1st molar ; DB root

102

cervical cross section max 1st molar

Wider faciolingually than mesiodistally

and has buccal and lingual depressions

103

tf max 2nd molar is smaller and has three roots closer together than max 1st molar

T

104

Carabelli Cusp usually absent

max 2nd molar

105

max M2 buccal view

Crown shorter and narrower mesiodistally than M1

106

tf max M2 only has 1 buccal cusp visible from the buccal aspect

F

Two buccal cusps visible (MB & DB)

107

wich cusp of max M2 is sharper and more prominent than Max M1

MB cusp

108

tf max M2 has a Facial cervical ridge more pronounced than M1

Facial cervical ridge less pronounced than M1

109

tf all Three roots visible of Max M2 from buccal side

T

110

three roots of max 2nd molar

MB, L, DB

111

max 2nd molar (mesial view)

MB root curves distally with apex over furcation area

112

max M2 buccal

Buccal furcation slightly distal to the facial developmental groove

113

M2 vs M1 root

Roots shorter, closer to each other, and inclined more distally than M1

114

tf all the roots of max M2 are parrallel to each other

t

115

from lingual aspect of max M2

all rooots and cusps visible

116

the cusps of Max M2

DL ML

MB DB

117

which cusp is smaller on the max M2

DL or ML

DL

118

tf max M2 has o fifth (Carabelli) cusp

F

No fifth (Carabelli) cusp usually

119

Palatal (lingual) root of Max M2(lingual aspect)

root smoothly convex

120

Apex of palatal root

Max M2(lingual)

over DL cusp 

121

DL groove of Max M2

terminates at a point further distal and occlusal than Max M1

(ends more midlingually)

A image thumb
122

mesial aspect of max M2

Two cusps and two roots visible

123

L (P) root and MB root

max M2 mesial

124

cusps visible from mesial side of Max M2

ML cusp , MB cusp

125

Facial cervical ridge of Max M2 (mesial view)

less prominent than M1

126

missing and not as pronounced

Cervical concavity or flattening on mesial aspect of max M2

127

centered mesial contact

max 2nd molar(mesial aspect)

128

tf Max M2 has a convex CEJ

F

flat

129

Less pronounced mesial marginal ridge

that is perpendicular to marginal ridge

max 2nd molar

130

MB and L roots of max M2

less divergent

131

MB and L roots of max M2

located well within the crown outline

132

tf from distal aspect of Max M2

all the cusps and roots are visible

T

133

tf Faciolingual root dimension of max M2 smaller than M1

T

134

which cusps of max M2 are shorter

DB and DL

135

tf from distal view of max M2 there is no occlusal surfce visible

F

more of occlusal surface is visible because of 

Smaller DB and DL cusps

136

distal contact of max M2

is more centered

137

Crown of max M2 tapers toward distal

thus more B and L surface visible

138

Lingual cusps of max M2 (distal view) over

lingual root

139

tf max m2 (distal view ) have a longer root trunk

F

 shorter

140

tf M1 and M2 maxilary both have db concavity

F

max M2 has no Db concavity

141

tf

MB and DL line angles of Max M2 are less acute than in

Max M1

F

more acute

142

rhomboid

outine form of max M2

143

tapers toward lingual and more constricted

Max M1 or Max M2

Max M2 (occlusaL)

144

largest cusp of MaxM2

ML cusp

145

DL cusp

small in Max M2

146

tf Max M1 and M2

have same groove pattern and fossa configuration

T

147

tf Max M1 and M2 have different ridge configuration

F they are the same

148

max 2nd molar

Buccal roots inclined distally and closer together

149

tf buccal roots of Max M2 are shaped like pliers

F

more parralel to each other

150

which has smaller lingual root

Max M1 or M2

Max M2

151

lingual root incline distally

MaxM2

152

tf max m2 have multiple pulp canal per root

F

1;1

153

One pulp ----- per cusp in max m2

One pulp horn per cusp

154

facial aspex of Max M3

very variable

155

tf max M3 is large than M2 and smaller thanM1

F

smaller than both

156

More rounded crown form

Maxillary Third Molar

157

------ area of Max M3 more narrow 

Cervical area more narrow

158

Roots of Max M3

fused and more curved toward distal

159

Max M3 

one large lingual cusp

(can have DL cusp but mostly absent)

160

tf in Max M3 only Crown converge dramatically toward lingual

f

Crown and root system converge dramatically toward lingua

161

Root system of Max M3 compact and curves toward ----

Root system compact and curves toward distal

(lingual view)

162

mesial outline of max m3

resembles general outline of maxillary molars

163

from mesial view of max M3 which cusp are visible

MB and L cusps

164

Max M3 mesial view ;

CEJ ----- in form

CEJ irregular in form

165

max thrid molar (mesial view)

 

Fused root system with furcation in apical third of root

166

which view of Max M3 are more anatomic features visible

Distal

167

tf on max M3 Crown height shorter on distal view

T

168

More occlusal surface visible

from distal view of Max M3

169

variable

occlusal aspect of max M3

170

tf occlusal view of Max M3 is trapezoid shape

F

heart shape

171

longest cusp of max M3

lingual cusp

172

tf on occlusal view of Max M3 

crown tapers only to distal view

F

Crown tapers dramatically toward distal and lingual

173

tf occlusal groove pattern of Max M3 has secondary groove pattern

T

174

Primary triangle

occlusal view of Max M3

175

irregular outline form and multiple depressions

cervical cross sectional of Max M3

176

tf we have larger jaws than ancestors

and we have plety of room to house 32 teeth

F

ur wisdom teeth often become impacted, or blocked from erupting.’