de Souza R-C-V, de Sousa E-T, Scudine K-G-O, Meira U-M, de Oliveira E Silva E-M, Gomes A-C-A, Limeira-Junior F-A
901 Limeira Avenue, Areiao- Piracicaba-SP/Brazil, 13414-903,
Med Oral Patol Oral Cir Bucal. 2018 Jan 1;23(1):e65-e71. doi: 10.4317/medoral.21965.
To compare the analgesic effect of anesthetic infiltration of lidocaine 2% and low-level laser therapy (LLLT) by GaAlAs into tender points of patients with orofacial pain and fibromyalgia (FM).
A randomized clinical trial was performed with adults (N=66) that were allocated into two groups (1:1): Group A received LLLT irradiation by Diode Laser GaAlAs (780nm) with expositions twice a week during six weeks and Group B was treated with anesthetic infiltration of lidocaine 2% without vasoconstrictor once a week for four weeks. The pain assessment included the Visual Analogic Scale (VAS) and tenderness to palpation.
No dropout and adverse effect was observed during the study. The pain decreased significantly in each group after the treatment (p=0.0001, β=1.0), even though no statistical difference was found between both treatments (p=0.46, β= 0.82). The presence of tender points decreased after both treatments, with responsively in some types of masticatory muscles (p<0.05) except posterior temporalis muscle. The patients perception showed that both treatments were effective and a few patients reported that the treatment did not improve welfare.
The LLLT by GaAlAs and anesthetic infiltration of lidocaine 2% were equally effective to control orofacial pain in FM individuals.
比较2%利多卡因麻醉浸润与GaAlAs低强度激光疗法（LLLT）对口面部疼痛和纤维肌痛（FM）患者压痛点的镇痛效果。
对成人（N = 66）进行一项随机临床试验，将其分为两组（1:1）：A组接受二极管激光GaAlAs（780nm）的LLLT照射，每周两次，共六周；B组接受不含血管收缩剂的2%利多卡因麻醉浸润，每周一次，共四周。疼痛评估包括视觉模拟评分法（VAS）和触压痛。
研究期间未观察到脱落和不良反应。治疗后每组疼痛均显著减轻（p = 0.0001，β = 1.0），尽管两种治疗之间未发现统计学差异（p = 0.46，β = 0.82）。两种治疗后压痛点均减少，某些咀嚼肌类型有反应（p < 0.05），颞肌后部除外。患者的认知表明两种治疗均有效，少数患者报告治疗未改善舒适度。
GaAlAs的LLLT和2%利多卡因麻醉浸润在控制FM个体的口面部疼痛方面同样有效。
