Abstract
Background : The purpose of this study was to evaluate apical debris extrusion in curved root canals using a specific file system.METHODS:50 human mandibular molars were extracted and chosen for the study, ranging between 20 and 40 degree and curvature radii <10mm were randomly assigned to 2 groups (n=20) according to the kinematics used for root canal preparation ( reciprocating motion with waveone gold reciprocating system) and the Manual Technique. The apically extruded debris were collected in eppendorf tubes. The tubes are stored in an incubator for 5 days. The time recorded for each instrumentation procedure was recorded. Results: The Wave One Gold reciprocating system is associated with less extrusion of debris as compared to Manual technique. Conclusion : Under the conditions of the study both the Wave One Gold Reciprocating system and the Manual instrumentation technique caused apical debris extrusion to some degree. The WaveOne Gold reciprocating system caused less extrusion of debris in curved root canals compared with manual instrumentation technique.
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