Maxillary Premolars COPY Flashcards
Longer, Max1PM or Max2PM?
Same length
% of canals, Max1PM:
2: 87%, 1: 8%, 3: 5%
Longer crown, Max1PM or Max2PM?
both the same
% canals for asians, Max1PM:
1:46%, 2: 54%
Max1PM, canal shape:
round
B canal curvature, Max1PM:
L, B, straight
P banal curvature, Max1PM::
D, B, straight
Which premolar has a mesial concavity?
Max1PM:
Which tooth has a furcation groove and where?
Max1PM:m, palatal aspect of B root
What to beware of with Max1PM::
strip perforation, access perforation on the mesial
Which canal is larger for the Max1PM:?
Palatal
Which tooth and root is often fenestrated trough cortical platee?
B root, Max1PM:
Ethnic group with higher percentage of 1 canals in Max1PM::
asians
Perforation of the side of a rooth:
Strip perforation
IN which direction is the Max1PM: wider?
BL than MD
Access shape for Max1PM: w 2 canals:
Oval
Bur to access Max1PM::
2 small round bur
Access shape for Max1PM w 3 canals:
Triangle (mini molar)
Where is the base of the triangle for access of Max1PM::
Base toward the B
How to instrument multirooted teeth:
away from the furcation
What can over instrumentation of the furcation side result in?
strip perforation
Where is the danger zone:
Furcation side
Instrument to move canal awa:
S1 and S2
Direction to brush:
toward the name of the canal, B for B
Communication area bw the root and the periodontium:
dangr zone
% of canals, Max2PM:
1: 48%, 2: 51%, 3: 1%
% of Max2PM with canals other than 1, 2, or 3:
2%
Maxillary sinus is directly above this tooth:
Max2PM
Shape of canal, Max2PM:
becomes round apically
Direction the canal is wider, Max2PM:
BL
canal curvatures for Max2PM:
distal, S-shaped, B, straight
To what direction is the canal curved the most, Max2PM?
distal
% of canals that join if there are 2 canals in the Max2PM::
50%
% of the time in total you have 1 foramen
75%
zipping the foramen:
damaging the foramen
When should you dettermie whether there are multiple canals:
before cleaning and shaping.
2 separate canals, 2 separate foramen, what type?
Type 4
2 canals that join to exit via 1 foramen, type?
Type 2
Accerss shape for Max2PM:
oval, just like Max1pm
Which premolar has a higher B cusp than the other?
1st
Tooth is mesial concavity:
Max1PM
Tooth with furcation groove:
Max1PM
Common curvature for Max2Pm:
severe distal, S-shaped apical curvature