Endodontics Flashcards
European Society of Endodontology’s Quality Guidelines say RCTs should have follow-up examination…
At least 1 year after treatment
Primary RCT vs secondary RCT
The success rate is lower for secondary RCT
but not by much 83–>80
Are root canals failed or successful?
No this language isn’t used.
Healed or persistent disease
Three situation where RCT re treatment is indicated
What microbes are primarily responsible needing for RCT re treatment?
Intra-radicular microbes (inside the canal either perisisting after RCT OR secondary through leakage)
There still might be residual bacteria in the canals after RCT, why might this not always be an issue?
- May die after RCT
- Too low in number to cause an issue
- Located in areas where they have no access to periapical tissues
Typically 1-5 species in well treated canals
Radicular cysts can be TRUE or Pocket
True - completely enclosed by epithelial lining
Pocket - communicates w root canal (this will subside post retreatement - where as true wont)
How is gutta percha removed?
Pro taper gold
Use F3–> F2–>F1 on coronal 2/3s
Set to 600rpm (much faster than usual)
Go down in 1mm increments.
Then negotiate with files
Removal of GP from simple anterior teeth
Hedstrom files and solvent
What is better surgical or non-surgical endodontic treatment?
At 4 years = surgical seems better
LONG TERM = endodontic retreatment is better
Most common cause of resorption
Pulpal infection
Most common way of removing a fractured instrument?
Ultrasonics (trephine)
anti-clockwise
Need straight line access
