Maxillary Molars

Question 1

crown heights are shorter or longer than premolars

Answer 1

shorter

Question 2

how many roots generally and name them

Answer 2

3
- mesiobuccal distobuccal and palatal

Question 3

how many cusps generally and name them

Answer 3

4
- mesiobuccal distobuccal mesiolingual distolingual

Question 4

development of maxillary 1st molars

Answer 4

i - birth
comp of enamel - 3-4yrs
e - 6yrs
comp of roots - 9-10

Question 5

mandibular molars erupt before of after maxillary

Answer 5

before

Question 6

are maxillary 1st molars succedaneous

Answer 6

no

Question 7

which tooth is the largest in the mouth

Answer 7

max 1st molar

Question 8

how many cusps in max 1 molars

Answer 8

4 functioning and 1 supplemental (or tubercle)(cusp of carabelli)

Question 9

what divides the two buccal cusps of the 1st max molar

Answer 9

buccal developmental groove
- divides then equidistant between mesiobuccal and distobuccal line angles

Question 10

the cervical line of the 1st max molars typically

Answer 10

does not have much curvature mesiodistally

Question 11

of all the max molars, which one is the least variable in anatomic form

Answer 11

1st max molars

Question 12

the buccal side of the 1 max molars is …shaped

Answer 12

trapezoid

Question 13

buccal side of 1st max molar
mesial line angle from cej to contact is relatively

Answer 13

flat with height of contour at junction of middle and occlusal thirds

Question 14

distal line angle on buccal side of 1st max molar is

Answer 14

convex occlusogingivally with height of contour in middle third

Question 15

buccal side: the disto occlusal angle of the max 1st molar is more … then the mesio occlusal angle

Answer 15

rounded

Question 16

buccal side: the cej of the 1st max molar is

Answer 16

irregularly curved

Question 17

on the buccal side of the 1st max molars close to the cej, sometimes you will find

Answer 17

a sharp dip just occlusal to the furcation

Question 18

1st max molar, the mesiobuccal cusp is … than the distobuccal cusp, but the DB cusp is…

Answer 18

wider, sharper

Question 19

true or false: in the first max molar, both MB and DB cusps are about the same height

Answer 19

true

Question 20

Class one occlusion (angles classification)

Answer 20

a normal SAGITTAL relationship of dental arches (neutrocclusion)

Question 21

class 2 malocclusion

Answer 21

position of mandibular arch is too posterior in relation to maxillary arch

Question 22

class 3 malocclusion

Answer 22

mandibular arch is too anterior in relation to the maxillary

Question 23

what shape is the mesial side of the 1st max molar

Answer 23

trapezoid

Question 24

the mesial side of the 1st max molar has a

Answer 24

mesial marginal groove

Question 25

what cusps can you see from the mesial side of the 1st max molar

Answer 25

mesiobuccal and mesiolingual

Question 26

mesially, the buccal outline of the 1st max molar is

Answer 26

convex cervically concave for short distance flattens out or back to convex occusally

Question 27

mesially, the lingual outline of the 1st max molar is

Answer 27

convex throughout more curved than buccal surface

Question 28

the lingual width of the 1st max molars is as wide as

Answer 28

buccal width

Question 29

the lingual side of the 1st max molars is ... shaped

Answer 29

trapezoid

Question 30

the mesial outline of the lingual side of the 1st max molar is similar to the buccal aspect in that

Answer 30

it is relatively flat with height of contour at the junction of middle and occlusal thirds

Question 31

the distal outline of the lingual side of the 1st max molar is similar to the buccal aspect EXCEPT

Answer 31

the distoocclusal angle is more rounded due to smaller DL cusp compared to DB cusp

Question 32

lingually, the cej of the 1st max molar is

Answer 32

irregularly convex towards the apex

Question 33

the height of contour of the lingual side of the 1st max molar is

Answer 33

in the middle third

Question 34

the lingual ridge of the ML cusp is much ...... of the two lingual cusps of the 1st max molar

Answer 34

larger and bulkier

Question 35

lingually, the occlusal margin of the 1st max molar is divided by

Answer 35

the concavity of the DISTOLINGUAL groove

Question 36

the distolingual groove separates

Answer 36

mesiolingual and distolingual cusps

Question 37

the ML cusp is .... than DL cusp but DL cusp is ....

Answer 37

larger and wider, sharper

Question 38

what is the largest cusp if the 1st max molar

Answer 38

ML cusp

Question 39

if the patient has a cusp of carabelli, where will it be found

Answer 39

lingual surface of the ML cusp of the 1st max molar

Question 40

what is the direction of the distolingual groove

Answer 40

originates on the occlusal surface and crosses onto the lingual surface distal to the midpoint of occlusal outline

Question 41

what is frequently a fissured groove

Answer 41

distolingual groove

Question 42

true or false: cusp of carabelli can be with or without dentin

Answer 42

true

Question 43

true or false: you can see the mesial cusps from the distal side of the 1st max molar

Answer 43

true