Assessment of Apically Extruded Debris after Using Different Endodontic Instrumentation systems.

Aims: Assess the quantity of apical extruded debris after instrumentation with ProTaper universal files, K3 and Wave One reciprocating file. Materials Methods: Thirty lower premolars were used in this study. Teeth randomly divided into 3 groups each one contained 10 samples as follow: Group1- prepared files. Group2- Group3- Debris that was apically during canals preparation collected centrifuge tubes, which previously weighed. Centrifuge tubes put for 5 days incubator temperature 70 °C to allow evaporation moisture. After weighed, determined via subtraction initial weight tube from final same tube, then data analyzed statistically. Results: Statistical analysis revealed that, group showed highest amount followed by and, least debris. The difference between not significant, but both them had significant group. Conclusions: Within limits current study, root files is better than other terms less extrusion