Fernando S, Hill C M, Walker R
Department of Oral and Maxillofacial Surgery, Dental Hospital, Cardiff, South Glamorgan.
Br J Oral Maxillofac Surg. 1993 Jun;31(3):170-2. doi: 10.1016/0266-4356(93)90118-g.
A randomised, double blind comparative study was undertaken to assess the efficacy of low level laser therapy in the reduction of postoperative pain and swelling in patients undergoing the extraction of bilaterally impacted mandibular third molar teeth. Healing of the sockets was also compared after 1 week. A group of 64 patients had one randomly-selected operation side treated with a semi-conductor laser and the other side with an apparently identical but non-operating model. Complete data were obtained from 52 of the 64 patients. The results showed that there was no evidence of a difference in pain and swelling on the third day after operation between laser and placebo sides. There was no difference between the two sides when they were assessed for healing 7 days after surgery.
进行了一项随机、双盲对照研究，以评估低强度激光疗法对双侧下颌阻生第三磨牙拔除术后患者减轻疼痛和肿胀的疗效。术后1周时还比较了牙槽窝的愈合情况。64例患者中，一组患者一侧随机选择接受半导体激光治疗，另一侧接受外观相同但无治疗作用的模型治疗。64例患者中有52例获得了完整数据。结果显示，术后第三天，激光治疗侧和安慰剂侧在疼痛和肿胀方面没有差异。术后7天评估两侧愈合情况时，两侧也没有差异。
