Comparative evaluation of rotary and reciprocating single file systems on post-operative pain – a randomised controlled clinical trial

Original Research

Abstract

Introduction

Post endodontic pain is intelligibly multifactorial, and the instrumentation procedure has been identified as a significant contributor. Debris and bacterial extrusion during chemo-mechanical preparation may be the cause of this, which exacerbates the inflammatory response and results in periradicular inflammation. Depending on the instrument design and instrumentation technique, the amount of extruded debris varies.

Aim

To compare and evaluate post-operative pain using rotary and reciprocating single file system

Methodology

Two groups of 27 reciprocating files (WAVEONE GOLD) and 27 rotary files, totaling 54 teeth, were created (One Shape). The entire root canal procedure was completed in a single appointment. VAS pain score was used to measure and evaluate post-operative pain at 6, 12, 24, 36, 48, and 72 hours.

Results

No discernible difference was found between the two groups' pre-operative mean pain levels when compared across various time periods (P>0.05). However, no significant difference in pain levels was found between the groups at 6, 12, 24, 48, or 72 hours after surgery.

Conclusion

In this investigation, there was no substantial difference in post-operative outcomes across the groups. The amount of pressure exerted on a tooth during cleaning and shaping with a single file is more than with a multiple file system, which will lead to post-operative discomfort. As the number of files decreases, debris extrusion decreases. Therefore, further research is required to fully understand the advantages and disadvantages of a single file system against numerous file systems.