Farhadi Farrokh, Eslami Hosein, Majidi Alireza, Fakhrzadeh Vahid, Ghanizadeh Milad, KhademNeghad Sahar
Department of Oral and Maxillofacial Surgery, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
Department of Oral and Maxillofacial Medicine, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran.
Laser Ther. 2017 Sep 30;26(3):181-187. doi: 10.5978/islsm.17-OR-13.
Wisdom teeth remains impacted in the jaw due to several reasons and surgery of impacted wisdom teeth is one of the most common surgeries in dental clinics. Pain, swelling and trismus are the common complications after this surgery which affect quality of life. In articles, various methods are introduced to control immediate inflammatory-response associated with third-molar surgery. The aim of this study is to evaluate the adjunctive effect of low-level laser Therapy on pain, swelling and trismus after surgical removal of impacted lower third molar.
This double-blind randomized controlled trial (RCT) was conducted on two groups of 24 patients (age range of 18-35) that had referred to surgical ward of Faculty of Dentistry, Tabriz University of Medical Sciences for surgery of their mandibular third molar(2015-16). All the subjects were systemically healthy and had at least one impacted mandibular third molar. After surgery, in experimental group, the laser was applied intraorally (inside the tooth socket) and extraorally (at the insertion point of the masseter muscle) immediately after surgery in contact with the target area for 25 seconds each. The laser energy was 2.5 J per area with an energy density of 5 J/ cm at the surface of the probe (spot size= 0.5 cm). In the other group, as the control group, it was pretended to radiate. Trismus, pain, and swelling were evaluated on the first and seventh days after surgery. The obtained data were evaluated using SPSS 16 software and independent samples T-test.
In the group where LLLT had been used, P> 0.05 was calculated for pain, swelling, and trismus on days 1 and 7 after surgery that was not statistically significant.
Under limitations of this study, using low-power laser with mentioned parameters, clinically reduces pain, swelling and trismus after surgical removal of impacted mandibular wisdom, but not statistically significant.
由于多种原因，智齿常滞留在颌骨内，拔除阻生智齿手术是牙科诊所最常见的手术之一。疼痛、肿胀和牙关紧闭是该手术后常见的并发症，会影响生活质量。在相关文献中，介绍了多种控制与第三磨牙手术相关的即时炎症反应的方法。本研究旨在评估低强度激光疗法对拔除下颌阻生第三磨牙术后疼痛、肿胀和牙关紧闭的辅助治疗效果。
本双盲随机对照试验（RCT）在两组各24例患者（年龄范围18 - 35岁）中进行，这些患者因下颌第三磨牙手术被转诊至大不里士医科大学牙科学院外科病房（2015 - 2016年）。所有受试者全身健康，至少有一颗下颌阻生第三磨牙。术后，在实验组，术后立即在口腔内（牙槽窝内）和口腔外（咬肌附着点处）使用激光，每个部位与目标区域接触25秒。激光能量为每区域2.5焦耳，探头表面能量密度为5焦耳/平方厘米（光斑尺寸 = 0.5平方厘米）。在另一组即对照组，假装进行照射。在术后第1天和第7天评估牙关紧闭、疼痛和肿胀情况。使用SPSS 16软件对获得的数据进行评估，并采用独立样本T检验。
在使用低强度激光疗法的组中，术后第1天和第7天的疼痛、肿胀和牙关紧闭情况计算得出P > 0.05，无统计学意义。
在本研究的局限性下，使用具有上述参数的低功率激光，在临床上可减轻拔除下颌阻生智齿术后的疼痛、肿胀和牙关紧闭，但无统计学意义。
