RETRIEVAL OF FRACTURED NI-TI ROTARY INSTRUMENT USING ULTRASONICS AND INSTRUMENT RETRIEVAL SYSTEM UNDER DENTAL OPERATING MICROSCOPE

During routine endodontic therapy, a clinician may encounter many procedural errors and obstacles which may alter the course of treatment; one such error is instrument separation. A separated instrument prevents complete cleaning and shaping of the root canal and this might potentially influence the course of the treatment. Hence, every attempt must be made to retrieve the broken instrument. There are various instrument retrieval kits and chair side techniques available for this purpose. The present case report describes the successful retrieval of separated nickel‑titanium rotary instrument with the help of ultrasonics and instrument retrieval system (IRS) under dental operating microscope.