Dept of Endodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.
Clin Oral Investig. 2023 Jun;27(6):2797-2804. doi: 10.1007/s00784-023-04864-z. Epub 2023 Jan 20.
As post-endodontic pain control is one of the main targeted addressed in endodontics, our aim was delignated to compare two different methods for low-level laser application utilizing diode laser: low-level laser therapy (LLLT) and laser-activated irrigation (LAI) in the control of post-endodontic pain.
A total of 180 patients received single-visit root canal treatment; they were randomly allocated into 3 equal groups. Group I received LAI, group II received LLLT, and group III served as control with normal root canal treatment and mock laser intervention (ML group). Postoperative pain was recorded using visual analogue scale (VAS) after 24, 48, and 72 h. Data were tabulated and statistically analyzed.
At 24 h, there was a statistically significant difference between median pain scores in the three groups (P value < 0.001) with ML group scored highest score followed by LAI and then LLLT group. At 48 h, there was a statistically significant difference between the three groups (P value < 0.001), with ML group scoring highest median pain scores while LLLT and LAI showed statistical insignificant scores. At 72 h, there was no statistically significant difference between the 3 groups (P value = 0.179).
LLLT is superior to LAI and ML group in the control of immediate postoperative pain after 24 h while after 48 h both LAI and LLLT were equally effective, but they still showed significant differences when compared to ML group.
Diode laser can be used by clinicians as it decreases the post-endodontic pain in patients with symptomatic apical periodontitis undergoing endodontic treatment.
由于根管治疗后疼痛控制是牙髓病学的主要目标之一，我们的目的是比较两种不同的二极管激光应用方法来控制根管治疗后疼痛：低水平激光疗法（LLLT）和激光激活冲洗（LAI）。
共有 180 名患者接受了单次根管治疗；他们被随机分为 3 个相等的组。组 I 接受 LAI，组 II 接受 LLLT，组 III 作为对照组，接受常规根管治疗和模拟激光干预（ML 组）。术后疼痛采用视觉模拟评分（VAS）在 24、48 和 72 小时后进行记录。将数据制表并进行统计学分析。
在 24 小时时，三组的中位数疼痛评分有统计学显著差异（P 值<0.001），其中 ML 组评分最高，其次是 LAI 组，然后是 LLLT 组。在 48 小时时，三组之间有统计学显著差异（P 值<0.001），ML 组的中位数疼痛评分最高，而 LLLT 和 LAI 组的评分则无统计学差异。在 72 小时时，三组之间无统计学显著差异（P 值=0.179）。
在 24 小时后，LLLT 在控制即刻术后疼痛方面优于 LAI 和 ML 组，而在 48 小时后，LAI 和 LLLT 的效果相当，但与 ML 组相比仍有显著差异。
对于患有症状性根尖周炎的牙髓病患者，临床医生可以使用二极管激光来减轻根管治疗后的疼痛。
