Güneç Hüseyin Gürkan, Pehlivan Büşra, Topbaş Celalettin, Kul Abdurrahman Kerim, Şirin Dursun Ali
Department of Endodontics, Hamidiye Faculty of Dentistry, University of Health Sciences, İstanbul, Türkiye.
Pain Res Manag. 2025 Sep 8;2025:6826535. doi: 10.1155/prm/6826535. eCollection 2025.
This study aimed to compare postoperative pain following the single-visit retreatment procedures of asymptomatic and symptomatic teeth using two different nickel-titanium file systems. Eighty patients were divided into symptomatic and asymptomatic groups, each further subdivided based on the use of rotary or reciprocating files. Retreatment involved removal of filling material with one flare and MicroMega REMOVER files, followed by shaping with one curve mini (rotary) or One RECI (reciprocating) files. Postoperative pain was recorded using a visual analogue scale (VAS) at 24 h, 48 h, 72 h, 7 days, and 14 days. Data were analyzed using Shapiro-Wilk, Mann-Whitney , Kruskal-Wallis, Dunn-Bonferroni, and Pearson chi-square tests ( < 0.05). No significant differences in postoperative pain were found among the four groups. Pain levels were not associated with sex, age, or tooth position. Analgesic use significantly decreased over time in all groups except the asymptomatic rotary group. Patients requiring analgesics reported higher pain scores within the first 48 h ( < 0.05). Postoperative pain was low and comparable across all groups. File kinematics (rotary vs. reciprocating) did not influence pain outcomes. Single-visit retreatment is a viable alternative to multivisit procedures for both symptomatic and asymptomatic cases. This study supports the clinical feasibility of single-visit root canal retreatment, potentially improving patient comfort and reducing chair time. ClinicalTrials.gov identifier: NCT06357481.
本研究旨在比较使用两种不同镍钛锉系统对无症状和有症状牙齿进行单次复诊再治疗术后的疼痛情况。80例患者被分为有症状组和无症状组，每组再根据使用旋转锉或往复锉进一步细分。再治疗包括用一支扩孔钻和MicroMega REMOVER锉去除充填材料，然后用一支One Curve mini（旋转）或One RECI（往复）锉进行根管预备。使用视觉模拟量表（VAS）在术后24小时、48小时、72小时、7天和14天记录疼痛情况。采用Shapiro-Wilk检验、Mann-Whitney检验、Kruskal-Wallis检验、Dunn-Bonferroni检验和Pearson卡方检验（P<0.05）对数据进行分析。四组之间术后疼痛无显著差异。疼痛程度与性别、年龄或牙齿位置无关。除无症状旋转锉组外，所有组中镇痛药的使用随时间显著减少。需要使用镇痛药的患者在最初48小时内疼痛评分较高（P<0.05）。所有组术后疼痛均较低且相当。锉的运动方式（旋转与往复）不影响疼痛结果。对于有症状和无症状病例，单次复诊再治疗是多次复诊治疗的可行替代方法。本研究支持单次根管再治疗的临床可行性，可能会提高患者舒适度并减少椅旁时间。ClinicalTrials.gov标识符：NCT06357481。
