Comparative evaluation of various endodontic irrigants on apical extrusion of debris

Abstract

Introduction. All techniques and instruments used to clean and shape canals produce some amount of apically extruded debris. The type of irrigant can affect the amount of apically extruded debris. The aim of the present study was to quantitatively compare the amount of debris extruded apically from root canals when three different irrigants were used during canal preparation with hand instruments. Material and Methods. Twenty extracted single-rooted human mandibular premolars with straight root canals were used. The teeth were randomly divided into 4 groups based on the irrigant used: Group 1: Biopure MTAD (Dentsply), Group 2: 3% NaOCl (Prima Dentalproducts), Group 3: 2% Chlorhexidine (Vishal Industries, Gujarat), Group 4: Control (no irrigation). Debris extruded through apical foramen during root canal preparation was collected into pre weighed empty guttapercha tubes. The weight of dry extruded debris was calculated by subtracting the preinstrumentation and postinstrumentation weight for each group. Obtained data was analyzed using one-way analysis of variance and Tukey test. Results. Group 2 (3% sodium hypochlorite) had the greatest amount of extruded debris which was significantly different from other groups (p<0.05). Conclusion. The type of used irrigant can affect the amount of apically extruded debris. Sodium hypochlorite in the concentration of 3% showed the greatest amount of extruded debris.

Keywords

• apically extruded debris (AED)
• flare ups
• irrigants
• smear layer