Chang Wen-Dien, Lee Chia-Lun, Lin Hung-Yu, Hsu Yung-Chun, Wang Chung-Jieh, Lai Ping-Tung
Department of Sports Medicine, China Medical University, Taiwan.
Physical Education Section of General Education, National Sun Yat-sen University, Taiwan.
J Phys Ther Sci. 2014 Aug;26(8):1297-300. doi: 10.1589/jpts.26.1297. Epub 2014 Aug 30.
[Purpose] Temporomandibular joint (TMJ) pain is a symptom of TMJ disease. Low-level laser therapy (LLLT) is often used in the clinical treatment of TMJ pain. The aim of this study was to review the effective parameters of LLLT for TMJ pain. [Methods] This study was a systematic review in which electronic databases were searched for the period of January 2005 to January 2010. We selected reports of randomized controlled trials and calculated the effect size (ES) of the pain relief to evaluate the effect of LLLT. [Results] Seven reports are found to meet the inclusion criteria and discussed. Based on the calculation results, the pooled ES was -0.6, indicating a moderate effect of pain relief. In addition, the dosages and treatments with wavelengths of 780 and 830 nm can cause moderate and large pain relief effects. [Conclusion] Use of LLLT on the masticatory muscle or joint capsule for TMJ pain had a moderate analgesic effect. The optimal parameters for LLLT to treat TMJ pain have not been confirmed. However, our results can be a vital clinical reference for clinical physicians in treatment of patients with TMJ pain.
[目的] 颞下颌关节（TMJ）疼痛是颞下颌关节疾病的一种症状。低强度激光疗法（LLLT）常用于颞下颌关节疼痛的临床治疗。本研究的目的是回顾低强度激光疗法治疗颞下颌关节疼痛的有效参数。[方法] 本研究为一项系统评价，检索了2005年1月至2010年1月期间的电子数据库。我们选择了随机对照试验报告，并计算疼痛缓解的效应量（ES）以评估低强度激光疗法的效果。[结果] 发现7篇报告符合纳入标准并进行了讨论。根据计算结果，合并效应量为-0.6，表明有中度的疼痛缓解效果。此外，780和830 nm波长的剂量和治疗可产生中度和较大的疼痛缓解效果。[结论] 对咀嚼肌或关节囊使用低强度激光疗法治疗颞下颌关节疼痛有中度镇痛效果。低强度激光疗法治疗颞下颌关节疼痛的最佳参数尚未确定。然而，我们的结果可为临床医生治疗颞下颌关节疼痛患者提供重要的临床参考。
