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Postoperative Pain Following Single-Visit Nonsurgical Retreatment Using Minimally Invasive Rotary vs. Reciprocating
Hüseyin Gürkan Güneç1, Büşra Pehlivan1, Celalettin Topbaş1
1Department of Endodontics, Hamidiye Faculty of Dentistry, University of Health Sciences, İstanbul, Türkiye.
Pain Research & Management
|September 17, 2025
Summary
Single-visit root canal retreatment using rotary or reciprocating nickel-titanium files resulted in comparable low postoperative pain for both symptomatic and asymptomatic teeth. This approach is a viable alternative to multiple visits, enhancing patient comfort.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Postoperative pain is a common concern after root canal retreatment.
- Optimizing retreatment protocols for patient comfort and efficiency is crucial.
Purpose of the Study:
- To compare postoperative pain after single-visit root canal retreatment of asymptomatic and symptomatic teeth.
- To evaluate the influence of rotary versus reciprocating nickel-titanium file systems on pain outcomes.
Main Methods:
- Eighty patients were divided into symptomatic and asymptomatic groups, further categorized by file system (rotary or reciprocating).
- Retreatment involved specific file systems for debris removal and canal shaping.
- Postoperative pain was assessed using a visual analogue scale (VAS) at multiple time points up to 14 days.
Main Results:
- No significant differences in postoperative pain were observed among the four treatment groups.
- Pain levels were not correlated with patient demographics or tooth position.
- Analgesic use decreased over time, with higher initial pain scores in patients requiring medication.
Conclusions:
- Single-visit root canal retreatment is associated with low and comparable postoperative pain, irrespective of tooth symptomatology or file kinematics.
- This procedure offers a clinically feasible and potentially more comfortable alternative to multi-visit retreatment.
