permanent molar identification

Question 1

what teeth only have one contact area with another tooth?

Answer 1

1,16,17,32

Question 2

functions of molars

Answer 2

maintain vertical dimension, keep other teeth in proper alignment, support the cheeks

Question 3

how many cusps are normal in molars?

Answer 3

3-5

Question 4

crowns are shorter ? and wider ?

Answer 4

occluso-cervically, mesiodistally

Question 5

name the plane the crown follows mesio-distally?

Answer 5

slanted plane slanting distally

Question 6

Generally speaking, how many cusps are buccal, lingual?

Answer 6

3 buccal, 2 lingual

Question 7

which direction should the smallest cusp face?

Answer 7

distal

Question 8

besides getting narrower mesiodistally, how else does it get narrower?

Answer 8

buccal to lingual ( except max 1st molar)

Question 9

what shape do maxillary, mandibular molars represent?

Answer 9

maxillary- fists,

mandibular- crosses

Question 10

height of contour on buccal, lingual side?

Answer 10

buccal- middle 1/3rd crown, lingual - cervical 1/3rd crown

Question 11

where are mesial &distal contact areas?

Answer 11

mesial- junction of occlusal and middle 1/3rd

distal- middle 1/3rd

Question 12

crown outline of 2 arches

Answer 12

maxillary- rhomboid/diamond

mandibular-squarish

Question 13

specific number of cusps for arches

Answer 13

max-3-5, mand-4-5

Question 14

which tooth often has cusp of carabelli and where is it on the tooth?

Answer 14

1st maxillary molar, distolingually located

Question 15

strongest part of the maxillary molar is?

Answer 15

transverse ridge

Question 16

what is the root trunk?

Answer 16

where the roots come together

Question 17

mandibular molars have the greatest what to what ratio?

Answer 17

root to crown

Question 18

describe the furcation of the roots between the two arches

Answer 18

mandibular have a small root trunk, maxillary is larger

Question 19

name the roots for maxillary molars

Answer 19

mesial buccal, distal buccal, palatal

Question 20

root differences in maxillary molars

Answer 20

1st- roots diverge more, 2nd roots converge more

Question 21

mandibular molar crown differences

Answer 21

1st- 5 cusps, zigzag

2nd- 4 cusps, cross

Question 22

on mandibular molar, which root is longer? wider?

Answer 22

mesial, mesial

Question 23

name the occlussal characteristics on a mandibular molar crown

Answer 23

mesial fossa, distal fossa, middle fossa, cervical ridge

Question 24

on mandibular molar which height of contour is more occlusal?

Answer 24

lingual is more occlulsal, buccal is more cervical

Question 25

describe where the cervical ridge is on a mandibular molar

Answer 25

runs mesiodistally on the buccal side.

Question 26

tissue that covers wisdom teeth is called what

Answer 26

operculum

Question 27

trauma and infection of operculum is called what

Answer 27

pericoronitis