Lab After midterm: Maxillary Molars

Question 1

Max1M and Max2M, # of roots:

Answer 1

3

Question 2

Max1M and Max3M, # of canals:

Answer 2

3-4

Question 3

Max1M, distal concavity on __ root

Answer 3

MB

Question 4

This root of Max1M is usually rounder and straighter, MB or DB?

Answer 4

DB

Question 5

Longest and largest root, Max1M:

Answer 5

P

Question 6

Common curvature of Max1M:

Answer 6

B

Question 7

Max1M and Max2M, most likely root to have 2 canals:

Answer 7

MB

Question 8

Max1 or Max2M, if 2 canals in MB root, what is configuration?

Answer 8

2-1 (Type 2)

Question 9

Max1M, MB root, more likely to have 1 or 2 canals?

Answer 9

2

Question 10

2nd most common canal system type in MB root of Max1M:

Answer 10

Type 4

Question 11

Curvatures of Palatal root:

Answer 11

Buccal, Straight

Question 12

Curvatures of DB root of both Maxillary 1 and 2M

Answer 12

Straight, Mesial, Distal

Question 13

TF? Both DB and Palatal roots of Max1M and Max2M have 1 canal 100% of the time.

Answer 13

T

Question 14

Canal missed the most in Max1M:

Answer 14

MB2, Mesiobuccal 2

Question 15

MB2, more common in Max1M or Max2M?

Answer 15

Max1M

Question 16

Most researched canal

Answer 16

MB2

Question 17

Location of MB2:

Answer 17

mesial to a line connecting MB and P canals (~1.82mm L to MB canal, usually)

Question 18

TF? The access shape for Max1M should cross the oblique ridge.

Answer 18

F. don’t cross oblique ridge

Question 19

Max1M and Max2M, access shape:

Answer 19

Triangle on M half, apex and ML cusp, base parallels B surface, don’t cross oblique ridge, rhomboid shape if MB2 is present

Question 20

getting straight line access, prevent strip perforations:

Answer 20

elipticizing canals, brush away from canals

Question 21

During elipticizing canals, round orifice will become oval in this direction:

Answer 21

opposite the furcation:

Question 22

Brush in this direction to elipticize MB canal

Answer 22

mesiobucaly

Question 23

Brush in this direction to elipticize MB2 canal

Answer 23

mesiopallatlly

Question 24

Brush in this direction to elipticize P canal

Answer 24

Palatally, also M and D because it’s broad in that direction

Question 25

Larger, Max1M or Max2M?

Answer 25

Max1M

Question 26

Max2M, MB root curves to a lot

Answer 26

D

Question 27

Curvature of Max2M and max1M, MB roots

Answer 27

distal, straight

Question 28

Max2M, MB root Canal types and percentages:

Answer 28

Type 2: 17%, Type IV: 12%

Question 29

Curvature of Max2M, P root

Answer 29

Straight, Buccal

Question 30

Position of DB canal of Max2M (compared to 1st?):

Answer 30

further palatal, not as for distal

Question 31

TF? Max2M rarely has just 2 canals, B and L.

Answer 31

T

Question 32

Shortest maxillary molar?

Answer 32

Max3M

Question 33

Max3M, # of roots and canals:

Answer 33

1-4