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Evaluation of Postendodontic Pain Using Multiple and Single Rotary File Systems in Single-Visit Endodontics - A

Sambarta Das1, Monika Mohanty1, Chinmayee Priyadarsini1

  • 1Department of Conservative Dentistry and Endodontics, Hitech Dental College and Hospital, Bhubaneswar, Odisha, India.

Journal of Pharmacy & Bioallied Sciences
|July 14, 2025
PubMed
Summary

Single rotary file systems significantly reduce postendodontic pain after root canal treatment compared to multiple systems. This approach offers better pain management in the early recovery period.

Keywords:
Multiple file systemspostendodontic painrotary file systemssingle-visit endodonticsvisual analog scale (VAS)

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Area of Science:

  • Endodontics
  • Dental Materials Science

Background:

  • Postendodontic pain is a common clinical concern following root canal therapy.
  • The choice of rotary file system impacts postoperative discomfort.

Purpose of the Study:

  • To compare postendodontic pain levels associated with single versus multiple rotary file systems in single-visit endodontics.
  • To evaluate the influence of rotary instrumentation on patient-reported pain.

Main Methods:

  • Sixty patients undergoing single-visit root canal treatment were randomized into two groups: multiple rotary files (Group A) and single rotary file (Group B).
  • Postoperative pain was quantified using the Visual Analog Scale (VAS) at 6, 24, and 48 hours.
  • Statistical analysis included Chi-square and independent t-tests (P < 0.05).

Main Results:

  • At 6 and 24 hours, Group B (single file) reported significantly lower VAS scores than Group A (multiple files) (P < 0.05).
  • By 48 hours, pain levels were minimal in both groups, with no significant difference (P > 0.05).
  • The single rotary file system demonstrated superior pain reduction within the initial 24 hours post-treatment.

Conclusions:

  • Single rotary file systems are associated with significantly less postendodontic pain compared to multiple rotary file systems in single-visit endodontic procedures.
  • Utilizing a single rotary file system may enhance patient comfort during the early postoperative phase of root canal treatment.