Real World Endo Forum
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Endo Questions for the RWE Faculty:
In this area, users are encouraged to ask questions from the RWE Faculty regarding Endodontics in General and the EndoSequence Technique.
Endo Questions for the RWE Faculty:: Protaper Universal
I have been using protaper rotary system since past 4 years on X-Smart hand piece. I have noticed a problem in few molar both maxillary and mandibular with instrumentation of the mesial canals. I start with canal negotiation with a #10 ISO file followed by coronal enlargement with GG #1-3 followed by Sx.
In between all the steps I irrigate the canals with 5% Hypochloride.
The Files are used at 250-300Rpm With 1.8NCm torque setting.
The problem is that some times after preparing the canal with say S1 or S2 till the working length the subsequent rotary files do not reach till the WL, also after irrigation and checking the canal patency with ISO 10,15 files reaching the Wl, even S1 or S2(Earlier which reached length) do not reach length anymore . Smaller rotary files like pathfiles also do not reach lenght..but I can still reach length with ISO hand files. What could be the reason and how do I overcome this problem?