(The incidence of dentinal defects after using single file Systems in moderately curved root canals (In-vitro study

Abstract

The use of rotary Nickel-Titanium single file system has been gaining more popularity nowadays than multi file systems. Less number of file used means, less manipulation of canals, more time saving and less damage to root dentin. The Dentinal defects formation such as root micro cracks during instrumentation with any rotary file is inevitable. These defects may complicate into root fractures on the long run and affects the overall prognosis of the endodontic therapy. In terms of comparison between three single file systems, some files demonstrated certain qualities over the other. The Reciproc recorded least amount of dentinal micro crack formation and smallest amount of surface defects formed after several clinical uses. The Waveone file was the fastest to reach the working length in both mesial canals.