Although different techniques are given in the text but it is very difficult to take out the broken instruments (Files, reamers. broaches etc.)
Special kits are available for this like Masseran kit, Endo Extractor and Mietrac I, II & III.
most of the instrument retrieval systems claim that they can remove separated instruments from anywhere in the canal...but the truth is that removal of instruments from the apical 3rd is most difficult and in curvatures it almost impossible...i usually try the pure desi technique...using H files for coronal and middle third..
Feasibility of broken fragment retrieval depends upon factors like: Size of the fragment, length of the fragment, the area of contact between instrument and the dentin (larger the area of contact less will be the feasibility), level at which it fractured (cervical middle or apical third), whether the instrument is occlusal to the curvature or apical to it (Less feasible if apical to the curvature) & instrument design (more tapered instruments can be retrieved easily than less tapered instruments).
Byepassing & retrieval is the ideal option. ultrasonic tips allow more conservative management. If retrieval is not feasible, they can be byepassed and RC obturation can be performed. It is important to weigh the benefits and risks of retrieval while planning the method of management.
Good luck:)
Dear all
Thanx for your suggestions
basically when there is separation at the apical portion it becomes very difficult to retrieve.
What is the prognosis when simply obturating it leaving the fractured instrument which has not extended the apex ?( plz share your experience and if possible the literature)