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The distal root instrumentation - Courtesy ROOTS

From: Venkat
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

Protaper flaring

6 yr old Empress

Cvek pulpotomy

Middle mesial

Endo misdiagnosis

MTA retrofill

Resin core

BW importance

Bicuspid tooth

Necrotic #8 treatment

Finding MB2 / MB3

Deep in a canal

Broken file retrieval

Molar cases

Pushed over apex

MB2 and palatal canal

Long lower third

Veneer cases

CT Implant surgury

Weird Anatomy

Apical trifurcation

Canal and Ultrasonics

Cotton stuffed chamber

Pulp floor sandblasting

Silver point removal

Difficult acute curve

Marked swelling

5 canaled premolar

Sealer overextension

Complex anatomy

Secondary caries

Zygomatic arch

Confluent mesials

LL 1st molar (#19)

Shaping vs Cleaning

First bicuspid

In Vivo mesial view

Inaccesible canals

Premolar 45

Ortho and implant


Lateral incisor


Churning irrigant

Cold lateral

Tipped to lingual

Acute pulpitis images

Middle distal canal

Silver point

Crown preparation

Epiphany healing

Weird anatomy

Dual Xenon

Looking for MB2

Upper molar resorption

Acute apical abcess

Finding MB2

Gingival inflammation

Irreversible pulpitis

AG BU ortho band

TF Files

using TF files

Broken bur

Warm technique

Restorative prognosis

Tooth # 20 and #30

Apical third

3 canal premolar

Severe curvature

Interesting anatomy

Chamber floor

Zirconia crown

Dycal matrix

Cracked tooth

Tooth structure loss

Multiplanar curves