S. Koçak, M. M. Koçak, B. C. Sağlam, S. A. Türker, B. Sağsen, and Ö. Er
Journal of Endodontics. 2013 October; 39(10):1278-80.
INTRODUCTION: The purpose of this study was to evaluate the weight of debris extruded apically from teeth using different in vitro preparation techniques.
METHODS: Sixty-eight extracted human mandibular premolars with single canals and similar lengths were instrumented using ProTaper F2 (25, .08; Dentsply Maillefer, Ballaigues, Switzerland), the Self-Adjusting File (1.5-mm diameter; Re-Dent Nova, Ra'anana, Israel), Revo-S SU (25, .06; MicroMega, Besancon, France), or Reciproc (R25; VDW GmbH, Munich Germany). Debris extruded during instrumentation were collected into preweighed Eppendorf tubes. The Eppendorf tubes were then stored in an incubator at 70°C for 5 days. The Eppendorf tubes were weighed to obtain the final weight of the Eppendorf tubes when the extruded debris were included. Three consecutive weights were obtained for each tube.
RESULTS: There were no statistically significant differences among the groups (P = .218). The ProTaper group produced the highest mean extrusion value. The Reciproc produced less debris compared with all the other instruments (P > .05).
CONCLUSIONS: All instrumentation techniques were associated with extruded debris.