A comparative evaluation of apical debris extruded during instrumentation with different instrument systems â€“â€an invitro study

Dr. Monij Sankhe; Dr. Nitin Shah; Dr. Pallavi Naik

Volume : V, Issue : VIII, August - 2016

A comparative evaluation of apical debris extruded during instrumentation with different instrument systems â€“â€an invitro study

Dr. Monij Sankhe, Dr. Nitin Shah, Dr. Pallavi Naik

Abstract :

Aim: The purpose of this in vitro study was to evaluate the amount of apically extruded deis using three different instrument systems. Instrument systems used were Hand protaper, Protaper next, and Self adjusting files. Methods: Forty–five freshly extracted human single–rooted mandibular premolar teeth with mature apices were selected. Working length was established and Forty–five teeth were randomly assigned to three groups of fifteen teeth each. Before canal instrumentation, Eppendorf vials preweighed to 10−5 precision were placed into the empty local anesthetic glass vial. The teeth were inserted up to the cemento–enamel junction into the Eppendorf vials, and then fixed with polyvinyl silicone. The teeth of the first, second and third groups were instrumented with ProTaper next, Self Adjusting Files and Hand protaper, respectively. The Eppendorf tubes were then stored in an incubator at 72�C for 4 days. The net weight of the extruded deis was determined by subtracting the initial weight from the last weight measured. Results: The results of this study showed that the SAF system caused least amount of apical deis extrusion where as hand ProTaper showed greater amount of apical deis extrusion. ProTaper Next rotary system performed better than hand ProTaper system. Conclusion: SAF instrumentation was associated with significantly less deis extrusion compared with the use of hand and rotary files. Thus we conclude that the Self Adjusting File system causes least amount of apical deis extrusion and hence will add to the success of endodontic treatment.