Clokie C, Bentley K C, Head T W
Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, McGill University, Montreal.
J Can Dent Assoc. 1991 Jul;57(7):584-6.
It has been postulated that low-energy lasers (soft lasers) have analgesic capabilities. European investigators who have worked with these lasers have tried to explain this phenomenon as an interference with the mediation of the pain message and/or the stimulation of endorphin production. There does not appear, however, to be much well-controlled research to support these claims. This study has examined the effect of the helium-neon laser on post-surgical discomfort. Fifteen patients who had surgical removal of bilaterally symmetrical mandibular third molars were evaluated. Laser therapy was applied to one side of each patient's mouth with the other side serving as the control. A similar technique of application, without activation of the laser beam, was utilized on the control side. This study has demonstrated that the helium-neon laser (632.8 nanometre (nm) at 10 milliwatt (mW), when applied to the surgical site for three minutes immediately following third molar surgery, reduced postoperative pain on the day of surgery and on the first postoperative day. This finding was statistically significant.
据推测，低能量激光（软激光）具有镇痛能力。使用这些激光的欧洲研究人员试图将这种现象解释为对疼痛信息传递的干扰和/或内啡肽产生的刺激。然而，似乎没有太多严格对照的研究来支持这些说法。本研究考察了氦氖激光对术后不适的影响。对15例双侧对称下颌第三磨牙手术切除患者进行了评估。对每位患者口腔的一侧进行激光治疗，另一侧作为对照。对照侧采用类似的应用技术，但不激活激光束。本研究表明，氦氖激光（波长632.8纳米（nm），功率10毫瓦（mW））在第三磨牙手术后立即应用于手术部位三分钟，可减轻手术当天和术后第一天的术后疼痛。这一发现具有统计学意义。
