Autoren: S. Koçak, M. M. Koçak, B. C. Sa?lam, S. A. Türker, B. Sa?sen, O. Er
Journal: JOE 2013, 39(10):1278-80
Schlüsselwörter: apical extrusion, debris, rotary instrumentation system
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
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