Maxillary Molars

Question 1

which may are molars bigger: MD or BL

Answer 1

BL

Question 2

what is the outline of the maxillary first molar from buccal view

Answer 2

trapezoidal

Question 3

where are the mesial and distal contacts/mesial and distal heights of contour on maxillary first molar

Answer 3

middle 1/3

Question 4

where is the concavity located on the maxillary first molar

Answer 4

cervical area on the distal surface of the DB cusp

Question 5

describe the mesiobuccal, distobuccal and lingual root of the maxillary first molar

Answer 5

mesiobuccal: straight, curves distally, in line with mB cusp tip
distobuccal: smallest, distal inclination then curves mesial
lingual/palatal: the longest, in line with the buccal groove

Question 6

how long is the root trunk of the 1st maxillary molar from the buccal view

Answer 6

1/3 length of root trunk, 4 mm

Question 7

which molar are the roots wider than the crown width

Answer 7

maxillary 1st molar

Question 8

how many root canals are in each root of the maxillary 1st molar

Answer 8

MB: 2 in 90-95% of cases
DB: 1 canal
lingual: 1 canal

Question 9

how big is the ML cusp of the maxillary first molar

Answer 9

3/5 MD width of tooth

Question 10

what is the lingual root of the maxillary 1st molar in line with

Answer 10

the lingual groove

Question 11

where is the lingual depression on the maxillary first molar

Answer 11

from the lingual groove to middle 1/3 of root

Question 12

what shape is the mesial aspect of the maxillary 1st molar

Answer 12

trapezoidal

Question 13

where is the buccal and lingual heights of contour from mesial view of maxillary 1st molar

Answer 13

buccal- cervical 1/3
lingual- middle 1/3

Question 14

where is the mesial contact of the maxillary 1st molar

Answer 14

middle 1/3 offset bucally

Question 15

what is the level of bifurcation mesially on the maxillary 1st molar

Answer 15

3mm

Question 16

what is the level of bifurcation distally on maxillary 1st molar

Answer 16

5 mm

Question 17

where is the distal contact of the maxillary first molar

Answer 17

in middle 1/3 offset buccaly

Question 18

what is the shape of the occlusal view of the maxillary 1st molar

Answer 18

rhomboidal

Question 19

what is the only tooth that broadens towards the lingual

Answer 19

maxillary 1st molar

Question 20

where is the central fossa on maxillary 1st molar

Answer 20

center of the trigon mesial to the oblique ridge

Question 21

where is the distal fossa on the maxillary 1st molar

Answer 21

distal to oblique ridge

Question 22

where is the central pit of the maxillary first molar

Answer 22

junction of central development groove, buccal groove, transverse groove of the oblique ridge

Question 23

where is the distal pit

Answer 23

junction of distal oblique groove and lingual groove

Question 24

what are the 2 occlusal types of the maxillary 2nd molars

Answer 24

rhomboidal and heart shaped

Question 25

what is the MB root apex in line with on the maxillary 2nd molar

Answer 25

buccal groove

Question 26

what is the lingual root of the maxillary 2nd molar in line with

Answer 26

the DL cusp tip

Question 27

what is the mesial contact of the maxillary 2nd molar

Answer 27

middle 1/3 and offset buccally

Question 28

how many roots are visible from the distal of the maxilary 2nd molar

Answer 28

all 3

Question 29

where is the distal contact of the 2nd maxillary molar

Answer 29

middle 1/3 and offset bucally

Question 30

what is the shape of the occlusal surface of the maxillary 2nd molar

Answer 30

rhomboidal

Question 31

what cusp is missing in the heart shaped occlusal shape of the maxillary 2nd molar

Answer 31

no DL cusp

Question 32

how many root canals are in each root of the maxillary 2nd molar

Answer 32

1 canal in each root

Question 33

what are the heights of contour of the maxillary 2nd molar

Answer 33

buccal: cervical 1/3 lingual: middle 1/3