The Amount of Extruded Debris: (An In-vitro Comparative Study)


Background Debris including dentin chips, residual pulp tissue, microorganisms and irrigants can be forced towards the periapical area. This extrusion may cause discomfort, pain, persistent inflammation and inter appointment flare up. Objectives To measure and compare the amount of apically extruded debris by using five irrigation techniques. Materials and Methodsً Seventy-five palatal root of extracted maxillary first molars were used. Each root was mounted in the pre-weighed collecting glass vial. The samples were randomly divided into five groups of 15 samples for each group according to the used irrigation technique: (Needle irrigation, Passive Ultrasonic Irrigation by NSK Varios, sonic irrigation by EndoActivatr, CanalBrush and EndoVac irrigation system). Canals were prepared using ProTaper NEXT rotary NiTi files to size X4, the irrigation technique of each group was conducted according to manufacturer instructions. The difference between pre and post-instrumentation weights presented as the weight of extruded debris. Results showed that all irrigation techniques caused apical extrusion of debris with different values.Conclusion EndoVac was found to be the safest irrigation system among all groups with respect to apical extrusion of debris.