Lab After midterm: Maxillary Molars Flashcards
Max1M and Max2M, # of roots:
3
Max1M and Max3M, # of canals:
3-4
Max1M, distal concavity on __ root
MB
This root of Max1M is usually rounder and straighter, MB or DB?
DB
Longest and largest root, Max1M:
P
Common curvature of Max1M:
B
Max1M and Max2M, most likely root to have 2 canals:
MB
Max1 or Max2M, if 2 canals in MB root, what is configuration?
2-1 (Type 2)
Max1M, MB root, more likely to have 1 or 2 canals?
2
2nd most common canal system type in MB root of Max1M:
Type 4
Curvatures of Palatal root:
Buccal, Straight
Curvatures of DB root of both Maxillary 1 and 2M
Straight, Mesial, Distal
TF? Both DB and Palatal roots of Max1M and Max2M have 1 canal 100% of the time.
T
Canal missed the most in Max1M:
MB2, Mesiobuccal 2
MB2, more common in Max1M or Max2M?
Max1M
Most researched canal
MB2
Location of MB2:
mesial to a line connecting MB and P canals (~1.82mm L to MB canal, usually)
TF? The access shape for Max1M should cross the oblique ridge.
F. don’t cross oblique ridge
Max1M and Max2M, access shape:
Triangle on M half, apex and ML cusp, base parallels B surface, don’t cross oblique ridge, rhomboid shape if MB2 is present
getting straight line access, prevent strip perforations:
elipticizing canals, brush away from canals
During elipticizing canals, round orifice will become oval in this direction:
opposite the furcation:
Brush in this direction to elipticize MB canal
mesiobucaly
Brush in this direction to elipticize MB2 canal
mesiopallatlly
Brush in this direction to elipticize P canal
Palatally, also M and D because it’s broad in that direction
