Department of Endodontics, Faculty of Dentistry, Ordu University, Ordu, Turkey.
Med Princ Pract. 2021;30(4):347-354. doi: 10.1159/000516342. Epub 2021 Apr 7.
The aim of this study was to investigate the effect of photobiomodulation therapy (PBMT) on postoperative pain provoked by thermal stimulation in direct pulp capping (DPC).
A retrospective study was performed using the records of patients who received DPC using mineral trioxide aggregate. Teeth irradiated with a laser were assigned as the PBMT group, and nonirradiated teeth were considered as the control group. Before treatment and 6 h, 1 day, and 7 days after treatment, tooth sensitivity to a cold stimulus was recorded using a visual analog scale.
From a total of 123 documented DPC procedures, only 72 directly capped permanent teeth met the inclusion criteria. Age, gender, and tooth location were comparable between the groups. A statistically significant difference was found in sensitivity to cold stimulus between groups on day 7 (p = 0.007), but no difference was found at the preoperative, 6 h, and day 1 time points (p = 0.055, p = 0.132, and p = 0.100, respectively). In the intragroup evaluation, a significantly greater decrease in sensitivity to cold stimulus was detected in the PBMT group than that in the control group, although both groups showed a reduction in discomfort throughout the follow-up period (p = 0.000).
PBMT is an effective method for enhancing patient comfort by reducing thermal sensitivity following DPC procedures.
本研究旨在探讨光生物调节疗法（PBMT）对直接盖髓术（DPC）后热刺激引起的术后疼痛的影响。
本研究采用回顾性研究，使用使用三氧化物聚合体进行 DPC 的患者记录。用激光照射的牙齿被分配为 PBMT 组，未照射的牙齿被视为对照组。在治疗前和治疗后 6 小时、1 天和 7 天时，使用视觉模拟评分法记录冷刺激引起的牙齿敏感性。
从总共 123 份记录的 DPC 程序中，只有 72 颗直接盖髓的恒牙符合纳入标准。两组的年龄、性别和牙齿位置相似。第 7 天（p = 0.007）两组间冷刺激敏感性存在统计学差异，但术前、6 小时和第 1 天无差异（p = 0.055、p = 0.132 和 p = 0.100）。在组内评估中，与对照组相比，PBMT 组冷刺激敏感性明显降低，但两组在整个随访期间均减轻不适（p = 0.000）。
PBMT 是一种通过降低 DPC 术后热敏感性来提高患者舒适度的有效方法。
