Effect of Different Instrumentation Technique on Endodontic Outcome

Aim: To evaluate and compare the outcome of primary endodontic treatment following use of different instrumentation techniques. Materials and methods: Study subjects were recruited from the pool of patients referred for the non-surgical root canal treatment in the Department of Conservative Dentistry \& Endodontics at PGIDS, Rohtak (Haryana). The study population comprised of patients requiring primary root canal treatment following the diagnosis of pulpal necrosis with chronic apical periodontitis in mature mandibular first and second molars. Subjects were allocated to one of the three study groups: manual instrumentation, ProTaper instrumentation and Hybrid instrumentation.