Özet:

The preparation of the root canal system is essential for a successful outcome in root canal treatment. The development of rotary nickel titanium instruments is considered to be an important innovation in the field of endodontics. During few last years, several new instrument systems have been introduced but the quest for simplifying the endodontic instrumentation sequence has been ongoing for almost 20 years, resulting in more than 70 different engine-driven endodontic instrumentation systems that are currently available to practitioners. But considering the current trends, where operators are choosing instrumentation technique by using only a small number of NiTi rotary files to decrease the learning curve and developing cost effective approach, single file endodontic file systems seems to be better alternative. Recently many single file systems are available such as files such as, self adjusting file (SAF; ReDent-Nova, Raanana, Israel), Twisted File (TF) (SybronEndo, Orange, CA, USA), Reciproc (VDW, Munich, Germany), WaveOne (Dentsply Maillefer, Ballaigues, Switzerland) , One Shape (micro mega, france) and F2 ProTaper universal Ni-Ti rotary instrument (Tulsa Dentsply, Tulsa, OK, USA) systems are claims to be able to completely prepare and clean root canals with only one instrument. Review (J Int Dent Med Res 2013; 6: (3), pp. 117-121)

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