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The distal root instrumentation - Courtesy ROOTS
From: Venkat
To: ROOTS
Sent: Saturday, May 29, 2010 12:01 PM
Subject: [roots] Difficult case explanation
The distal root instrumentation, I divided into 3 phases (see pics attached)
1. work the straight part of the canal to get approximately #40 at the beginning of the acute curve with out forcing
any instruments into the curve. This is quick and as I was doing this I used a #6 file to gently enter the curve.
With canal filled with liquid EDTA slowly work with less than quarter turns, pre curved #6, #8, #10. During this
time #10 tends to straighten so I stop before I can cause a ledge or transport the canal, recapitulate with #6, #8
and then try to advance with #10
2. Work the bend: Essentially extending the #40 diameter 2mm into the bend so the bigger stiffer files can go to WL
` without transporting.
3. Try to take larger SS K files #15, #20 to WL. #25 is too stiff for the bend and tends to straighten. Niti 02 taper
` or Series 29 could be very useful from what I hear from senior pros at this but I did not use them.
I worked till i could get a 06 cone to fit with endo ice to maintain the curve on the GP. I'm chicken when it comes
to squirting:))
Lots irrigant and keep going back to patency file in this case #6.` - Venkat
