Comparative evaluation of the shaping ability of single file system versus multiple file system in root canals of mandibular molars: An in-vitro study

Abstract

The aim of the study was to compare the shaping ability of two different Nickel-Titanium file systems in mesial roots of mandibular first molars. Methods: Fourty freshly extracted mandibular molars were used for the study. A muffle-block was constructed as given by Aviad et al. [8] Photographs were taken of all three cross-sections of each tooth using a DSLR Camera (Nikon Digital, Tokyo, Japan) at a fixed position. The specimens were randomly divided into the following two groups: Group l: Prepared using Wave One rotary files. Group 2: Prepared using Pro-Taper rotary files. Results: In our study the Wave One file system exhibited better centering ability than Pro-Taper Universal file system (p