Mandibular Molars

Question 1

How many cusps are in mand 1st molar?

Answer 1

5

Question 2

How many cusps are in mand 2nd molar?

Answer 2

4

Question 3

Mand molars are broader ______ than _____

Answer 3

M-D than B-L

Question 4

The Crown height, root length, MD diameter, and BL diameter of mand molars _____ from 1st to 3rd

Answer 4

decrease

Question 5

Posterior teeth are wider or longer?

Answer 5

Wider

Question 6

Anterior teeth are wider or longer

Answer 6

Longer

Question 7

What are the 5 cusps of 1st mand molar?

Answer 7

MB, DB, ML, DL, and distal

Question 8

How many roots does 1st mand molar?

Answer 8

2

Question 9

Roots of mand molar are broad in which dimension?

Answer 9

B-L

Question 10

Which direction do roots of 1st mand molar point/curve?

Answer 10

Distally

Question 11

How many cusps of mand 1st molar are visible from buccal view?

Answer 11

All 5

Question 12

What is the shape of buccal aspect of 1st mand molar?

Answer 12

Trapezoidal

Question 13

What are the sizes of buccal cusps of 1st mand molar from largest to smallest?

Answer 13

MB > DB > Distal

Question 14

What are the 2 grooves of the buccal aspect of 1st mand molar?

Answer 14

MB developmental groove and DB developmental groove

Question 15

(mand 1st molar) Groove in btwn MB and DB cusp that is shorter and terminates in middle third of tooth

Answer 15

MB developmental groove

Question 16

(mand 1st molar) Groove in btwn distal and DB cusp terminates in cervical 1/3

Answer 16

DB developmental groove

Question 17

Where are heights of contour for 1st mand molar

Answer 17

Middle 1/3

Question 18

Cervical line from buccal aspect of 1st mand molar curves

Answer 18

apically

Question 19

Mesial outline of 1st mand molar from buccal view is _____

Answer 19

convex and concave

Question 20

Distal outline of 1st mand molar from buccal view is _____

Answer 20

convex and straight

Question 21

___ root of 1st mand molar has 2 canals and is straight and curves distally to a tapered apex

Answer 21

Mesial

Question 22

___ root of 1st mand molar has 1 canal and points distally to a more tapered apex canal

Answer 22

Distal

Question 23

Roots of 1st mand molar are _____ on buccal than lingual

Answer 23

wider M-D

Question 24

Root trunk of 1st mand molar is ____ on buccal side than lingual side

Answer 24

shorter

Question 25

How many cusps of 1st mand molar are visible from lingual view?

Answer 25

3: ML, DL, and Distal

Question 26

____ bisects the ML and DL cusp of 1st mand molar

Answer 26

lingual developmental groove

Question 27

Bifurcation of 1st mand molar is in line with _____

Answer 27

Lingual Dev. Groove

Question 28

From the mesial aspect, the 1st mand molar is ___ in outline

Answer 28

rhomboidal

Question 29

Which cusps of 1st mand molar are visible from mesial aspect?

Answer 29

MB and ML

Question 30

Which root of 1st mand molar is visible from the mesial aspect?

Answer 30

Mesial

Question 31

Buccal height of contour of 1st mand molar

Answer 31

cervical 1/3

Question 32

Crown of mand PM and Molars tilt ____ to root axis

Answer 32

lingual

Question 33

Lingual height of contour of 1st mand molar in

Answer 33

middle 1/3

Question 34

Cervical line is higher lingually than buccally from mesial aspect in which tooth?

Answer 34

1st mand molar

Question 35

There is a Slight ____ developmental depression on root of 1st mand molar

Answer 35

mesial

Question 36

Cervical line curves ____ from mesial aspect of 1st mand molar

Answer 36

occlusally

Question 37

Root apex of 1st mand molar lies under ____ cusp

Answer 37

MB

Question 38

How many roots are visible from distal of 1st mand molar?

Answer 38

2

Question 39

Distal marginal ridge of 1st mand molar is ____ (shorter or longer) and dips ____

Answer 39

shorter; cervically

Question 40

What is the shape of 1st mand molar from occlusal aspect?

Answer 40

Hexagonal

Question 41

Crown is 1st mand molar is wider _____ (buccally or lingually) and ____ (mesially or distally)

Answer 41

buccally and mesially

Question 42

What are the size of cusps of 1st mand molar from largest to smallest?

Answer 42

MB > ML ≥ DL > DB > D

Question 43

How many major fossae does 1st mand molar?

Answer 43

1

Question 44

How many minor fossae does 1st mand molar have

Answer 44

2

Question 45

___ fossa is Circular and Centrally placed between cusp ridges (major fossa)

Answer 45

Central Fossa

Question 46

What are the 2 minor fossae of 1st mand molar?

Answer 46

Mesial triangular fossa & Distal triangular fossa

Question 47

Distal slope of MB cusp, Mesial and distal slopes of DB cusp, Mesial slope of D cusp, Distal slope of ML cusp, Mesial slope of DL cusp, and Triangular ridges of the MB, D, DL and ML cusps are boundaries of ___ of 1st mand molar

Answer 47

Central fossa

Question 48

How many cusps does 2nd mand molar have?

Answer 48

4

Question 49

How many roots does 2nd mand molar have?

Answer 49

2

Question 50

How many cusps visible from buccal aspect of 2nd mand molar?

Answer 50

4

Question 51

_______ separates the two buccal cusps of 2nd mand molar

Answer 51

Buccal developmental groove

Question 52

Where are the mesial and distal contacts of 2nd mand molar?

Answer 52

middle 1/3

Question 53

Cervical line from buccal aspect of 2nd mand molar points

Answer 53

toward bifurcation

Question 54

Mesial root of 2nd mand molar is more ____ at apex than 1st

Answer 54

pointed

Question 55

Is the cervical line more curved from mesial aspect in mand 2nd molar or 1st?

Answer 55

1st mand molar

Question 56

Mand 2nd molar distal contact is ______ B-L

Answer 56

centered

Question 57

T/F: In mand 2nd molar, all cusps are same size

Answer 57

True

Question 58

What are the 3 grooves on occlusal surface of 2nd mand molar?

Answer 58

Central, lingual, and buccal groove

Question 59

What is the shape of 2nd mand molar from occlusal aspect?

Answer 59

Rectangular

Question 60

Most max 3rd molars have ___ crowns

Answer 60

oversized crowns

Question 61

Most mand 3rd molars have ____ crowns

Answer 61

undersized crowns