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

BACKGROUND

Postendodontic pain is a common concern following root canal treatment. The rotary file system used during the procedure significantly influences this pain.

MATERIALS AND METHODS

A total of 60 patients requiring single-visit root canal treatment on single-rooted teeth were divided into two groups: group A (n = 30) treated using multiple rotary file systems, and group B (n = 30) treated using a single rotary file system. Postendodontic pain was assessed using a visual analog scale (VAS) at 6, 24, and 48 hours post-treatment. Statistical analysis was performed using the Chi-square test and independent -test, with significance set at < 0.05.

RESULTS

At 6 hours, group A reported a mean VAS score of 4.2 ± 0.8, while group B reported 3.1 ± 0.7 ( < 0.05). At 24 hours, the scores decreased to 2.8 ± 0.5 and 1.9 ± 0.6, respectively ( < 0.05). At 48 hours, both groups reported minimal pain, with mean scores of 0.8 ± 0.3 for group A and 0.5 ± 0.2 for group B ( > 0.05). Overall, the single rotary file system demonstrated significantly lower pain levels compared to the multiple file system during the first 24 hours.

CONCLUSION

Single rotary file systems result in significantly less postendodontic pain compared to multiple rotary file systems in single-visit endodontics. These findings suggest that the single rotary file system may be preferable for reducing patient discomfort during the early postoperative period.