Molars

Question 1

Molars take up more area on which arch?

Answer 1

Mand (51%) vs max (44%)

Question 2

All molars MD vs OC

Answer 2

MD greater than OC

Question 3

Do molars taper narrower distally or mesially

Answer 3

distally from occlusal and buccal view

Question 4

Contacts for all molars

Answer 4

M: junction
D: middle third

Question 5

Mandibular molars FL vs MD

Answer 5

MD longer

Question 6

Maxillary molars FL vs MD

Answer 6

FL slightly longer

Question 7

Maxillary molar occlusal shape

Answer 7

square or rhomboid

Question 8

Mand. molar occlusal shape

Answer 8

rectangle or parallelogram

Question 9

Mand molars crown tilt

Answer 9

lingually and slightly buccally

Question 10

is the mesiobuccal or distobuccal groove of a mand 1M more likely to decay

Answer 10

mesiobuccal groove b/c it usually extends into middle third of crown

Question 11

Mesial or distal contour of mand 1M greater at CEJ?

Answer 11

Distal contour greater towards CEJ

Question 12

Mand 1M vs 2M: which has longer and more divergent roots?

Answer 12

Mand 1M

Question 13

What percent of Mand 1M lack a distal cusp?

Answer 13

15-20%

Question 14

Are lingual grooves on mand molars likely to be carious

Answer 14

Nah

Question 15

What way does CEJ slope occlusally on mand molars?

Answer 15

occlusally from buccal to lingual

Question 16

What grooves join central groove together on mand 1M

Answer 16

Mesiobuccal and lingual

Question 17

Which cusps are longest and shortest on max molar

Answer 17

Longest-mesiolingual

Shortest-distolingual

Question 18

Which max molar more likely to be missing DL cusp?

Answer 18

2nd (33%)

Question 19

Is the lingual groove on max molars caries prone?

Answer 19

Yes

Question 20

T or F: Max M always taper narrower lingually.

Answer 20

F. If max 1M has large DL cusp may be wider MD than buccal MD dimension

Question 21

Transverse vs oblique ridge max M

Answer 21

Transverse ridge: ML to MB cusp

Oblique ridge: ML to DB cusp

Question 22

Four cusp type max M has how many fossae?

Answer 22

4

Distal triangular is minute

Question 23

Are mesial contacts typically more buccally located or lingually located than distal contacts?

Answer 23

Mesial

Question 24

Distal contact of Max 1M location

Answer 24

centrally located. Exception!