Department of Endodontics, Faculty of Dentistry, Kırıkkale University, Kırıkkale, Turkey.
Department of Endodontics, Faculty of Dentistry, Ataturk University, Erzurum, Turkey.
J Endod. 2018 Nov;44(11):1610-1615. doi: 10.1016/j.joen.2018.07.002. Epub 2018 Aug 23.
In this clinical trial, we evaluated the effect of low-level laser therapy (LLLT) on postoperative pain in mandibular molar teeth with symptomatic apical periodontitis.
Forty-two patients were included in the study according to the inclusion and exclusion criteria. Root canal treatment was conducted using reciprocating instruments. The patients were randomly distributed into 3 groups using a Web program as follows: control (no laser was applied), placebo (mock laser therapy), and LLLT. Postoperative pain levels on the 1st, 3rd, 5th, 7th, and 30th day and postoperative percussion pain levels on the visual analog scale were recorded. The chi-square, 1-way analysis of variance, and least significant difference post hoc tests were performed to analyze the data (P = .05).
LLLT resulted in lower pain levels than those noted in the control and placebo groups on days 1 and 3 (P < .05). There were no significant differences among the placebo, LLLT, and control groups in terms of postoperative percussion pain levels (P < .05).
LLLT can be beneficial in reducing postoperative pain in endodontics.
在这项临床试验中，我们评估了低水平激光疗法（LLLT）对有症状的根尖周炎的下颌磨牙术后疼痛的影响。
根据纳入和排除标准，将 42 名患者纳入研究。使用往复器械进行根管治疗。使用网络程序将患者随机分为 3 组：对照组（未应用激光）、安慰剂组（模拟激光治疗）和 LLLT 组。记录术后第 1、3、5、7 和 30 天的术后疼痛程度和术后叩诊疼痛程度的视觉模拟评分。采用卡方检验、单因素方差分析和最小显著差异事后检验进行数据分析（P = 0.05）。
与对照组和安慰剂组相比，LLLT 组在第 1 天和第 3 天的疼痛水平较低（P < 0.05）。在术后叩诊疼痛水平方面，安慰剂组、LLLT 组和对照组之间无显著差异（P < 0.05）。
LLLT 可有效减轻牙髓病学中的术后疼痛。
