Important Info 2.2 Flashcards
Where to bend irrigation thing?
I put 2mm short of working length
- Other options were 1mm short of WL, at WL, beyond WL, or 5mm short of WL
this is correct based on last semesters lecture- haley
Case study about a dilaceration?
re-treat by endo
Case study about the MB2 canal probably beign missed in the maxillary 1st molar
re-treat by endo
A student doctor perforated the coronal part of the root. The pt only had pulpal symptoms before, but after that RCT, they had periapical symptoms. What do you do now?
I said to refer to endo to see the prognosis of healing that perforation
Someone came in with slight fever and some swelling. What’s the PA dx?
acute apical abscess
There was a molar that had an RCT a few weeks ago. PA symptoms now, and there was a possibility of perforation. What do you do?
- Retreat it
- Or refer it to endo for tx possibilities and prognosis
- I think I put to refer it cuz of the possible perforation
Person had a pimple (a DST I believe.) what do you do?
Extract???
or
RCT???
probably a root canal if possible?
Case study about Tooth #23
I put re-treatment by endo bc they might have missed a 2nd canal
What do you need for hydraulic technique?
0.04 cone, single cone, sealer
What do you need for CLC?
0.02 cone, finger spreaders, accessory GP cone
What temp is the alpha phase
42-44 C
(referring to GP- obturation lecture)
I’m not sure we need to know this
What is the main component of gutta percha?
zinc oxide
What do you use to get rid of the dentin triangle?
we use 25/.08 vortex orifice opener now
What do you scout canals with
10 file
What bend do you have to do to get past curves
45 degree in last 1.5mm
When are you done with the vortex?
When you have white filings on the apical 1/3
Where are you gonna transport the canal?
On the outer curve
What is it when 2 canals from orifice turn into 1 canal at apex?
type 2
What is type 2?
2 at orifice🡪1 at apex
How do you determine if its type 2 or 3?
Two file technique
The single most important factor for RCT success is…
case selection
True or false – WL is 1mm past the apex
false
What does the apex locator tell you?
when you are outside of the tooth
If you perforate: then dry carefully, put CaOH, then put cavit, then cotton, then temp restoration. True or false?
True (this is the wrong order according to the slides)
put CaOH (disinfect), protect canals with cotton, use cavit, seal tooth with temp restoration
What’s the main thing we use bw appointments in the canals?
CaOH
Which one is transported easily?
Distal of mesial canals of mandibular molars
Which one is the least likely to get transported?
a. MF canals of max molars
b. 2 canal PMs
c. Mesial canals of mand molars
d. Something else that wasn’t on that slide
d. Something else that wasn’t on that slide
Worst mistake to make?
perforation
True/false
Iatrogenic errors can be prevented with education, care, etc.
True
Ledges can lead to
Blockages, transportation, and perforation
After correct dx, there is never an excuse to do RCT on the wrong tooth
True
Which is not a consideration when deciding if you can do RCT?
Color of the pulp or something
What do you use to get rid of smear layer?
EDTA
Something about how long the apical constriction is or something
1mm
What’s the purpose of recall appointment?
To see if further tx is needed, to see if it’s healed, and something else. Answer was all of the above
What do you do after you take the WL radiograph?
create glide path with #15 file
Something about what do you do if you blow out
Shorten the WL
What is the preferred thing to fix perforations?
MTA
What file do you use for the Buccal of maxillary premolar?
.25/.06
.30/.06
.35/.06
.30/.06
i believe ours would be .30/.04 bc we use vortex blue’s with .04 taper
primary consideration for RCT tx except:
esthetics
why use wave one every 1/3 of root?
Because they push debris ahead of file
shape of maxillary central incisors access?
Triangle with base of tri towards the incisal
obturate canal goes to what distance in the root?
goes to the WL
