Comparative Evaluation of Apical Debris Extrusion During Root Canal Preparation Using Two Different Rotary File Systems: “A Wave One Gold and Hyflex EDM Rotary File Comparison

Abstract

Background: This study was conducted for Comparative Evaluation of Apical Debris Extrusion During Root Canal Preparation Using Two Different Rotary File Systems: A Wave One Gold and Hyflex EDM Rotary File.

Material and methods: The working length was determined with number 10 K file up to root canal terminus and subtracting 1 mm from it and confirmed radiographically. An endodontic motor with both continuous and reciprocating motion settings (X-smart plus, Dentsply) was used with 6:1 gear reduction handpiece. A disposable side vented 30-gauge navi tip needle was used for irrigation in all groups, was passively inserted 2 mm from the apex and delivered 8 mL of distilled water as the total volume, 4 mL during instrumentation, and 3 mL as a final flush. Eppendorf tube was used to collect the extruded debris and irrigant during the preparation and were incubated at 37°C for 15 days to allow moisture to evaporate, before weighing the dry debris. On an electronic microbalance, three successive measurements of each eppendorf tube were made, and the mean of these readings was taken to determine the weight of each tube. By deducting the tube's pre-experiment weight from the weight of the tube containing dried debris, the weight of the extruded debris in each tube was estimated. For each group, the mean weight of the extruded debris was computed.

Results: The mean apically extruded weight of debris in WaveOne Gold (0.0084 g) was observed to be higher than Hyflex EDM (0.0023 g)

Conclusion: Based on the findings of the study, it was discovered that the mean apically extruded weight of debris in WaveOne Gold was higher than Hyflex EDM.