COMPARISON OF APICALLY EXTRUDED DEBRIS USING THREE DIFFFERENT ROTARY INSTUMENTATION TECHNIQUES

The purpose of this in vitro study was to compare three different rotary instrumentation systems for the amount of apically extruded debris. thirty six extracted human permanent mandibular premolar teeth were used in the study. teeth were divided into three experimental groups in order to shaping with (n=12) revo-s, twisted file and oneshape. the extruded debris was collected in preweighed eppendorf tubes. the weight of extruded debris determined by subtracting the empty tubes weight from the filled tubes weight. data were analyzed using one way anova test. all systems caused apically extruded debris. there was no statistically significant difference among the three groups with respect to extruded debris (p=0,632). under the conditions of this study, it was found that revo-s, twisted file ve oneshape systems caused similar apically extruded debris during root canal preparation.