Quiz 3 Flashcards
(34 cards)
what is the shape of the access opening for maxillary incisors?
rounded triangle
what is the shape of the access opening for maxillary canines?
rounded teardrop
what is the shape of the access opening for maxillary premolars?
elongated oval
what is the shape of the access opening for mandibular incisors?
oval
what is the shape of the access opening for mandibular canines?
oval
what is the shape of the access opening for mandibular premolars?
oval
___% of maxillary incisors have 1 canal
100%
___% of maxillary canines have 1 canal
100%
___% of maxillary first premolars have 2 canals
60-80%
___% of maxillary second premolars have 1 canal
80-90%
___% of mandibular incisors have 2 canals
20-40%
___% of mandibular canines have 2 canals
3-6%
___% of mandibular first premolars have 1 canal
75%
___% of mandibular first premolars have 2 canals
25%
___% of mandibular first premolars have 3 canals
1%
___% of mandibular second premolars have 1 canal
85%
___% of mandibular second premolars have 2 canals
15%
define initial apical file
the first file that binds the minor apical constriction at working length
define working length
how long the root canal system is from an incisal/occlusal reference point to the minor apical constriction
define straight line access
straight until the first curvature or the apical third
define master apical file
2-3 sizes bigger than the IAF; it goes to WL passively and stops at WL
the minor apical foramen is considered the ___
“apical stop”
what is the rotary instrumentation system we use?
brassler bio race
when using rotary instrumentation, what are the steps, and what rotary files do you use at each step?
- BR-0: orifice opener file - coronal prep
- determine WL
- create glide path
- BR-1 to WL
- BR-2 preps apical 1/3
- BR-3 blends middle and apical 1/3
* you can use BR-4 and BR-5 if the canal is larger
