Eroglu Cennet Neslihan, Keskin Tunc Serap
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Yuzuncu Yil University , Van, Turkey .
Photomed Laser Surg. 2016 Sep;34(9):406-10. doi: 10.1089/pho.2016.4101. Epub 2016 Jul 15.
In low-level laser therapy (LLLT), applications are generally performed in repetitive sessions using wavelengths of around 800 nm, at which the depth of penetration of laser is greater. The present study aimed to investigate the effects of LLLT with a 940 nm diode laser, which was performed extraorally on all the primarily and secondarily affected areas immediately after surgery in a single session, on pain, swelling, and trismus that occurred after impacted tooth extraction.
Thirty-five outpatients with similarly impacted lower third molars on both sides were selected. The teeth of patients were removed in two separate operations. Postoperatively, the patients received laser therapy with energy of 4 J/cm(2) on one side and no laser energy was applied to the other side (placebo side). Swelling, trismus, and subjective assessment of pain on a visual analog scale were evaluated and compared between the laser-treated and placebo sides.
There was no statistically significant difference in pain, swelling, or trismus between the sides (Mann-Whitney U test p > 0.05). However, according to the clinical outcomes, swelling and trismus were less in the laser-treated side than in the placebo side.
A single-session LLLT that would be applied with a diode laser immediately after impacted tooth extraction might help patients to be less affected by postoperative trismus and swelling.
在低强度激光治疗（LLLT）中，通常使用波长约800nm进行重复治疗，该波长下激光的穿透深度更大。本研究旨在探讨在阻生齿拔除术后立即在所有主要和次要受影响区域进行单次口外940nm二极管激光低强度激光治疗对疼痛、肿胀和牙关紧闭的影响。
选择35例双侧下颌第三磨牙阻生情况相似的门诊患者。患者的牙齿分两次手术拔除。术后，患者一侧接受能量为4J/cm²的激光治疗，另一侧不施加激光能量（安慰剂侧）。对激光治疗侧和安慰剂侧的肿胀、牙关紧闭情况以及采用视觉模拟评分法进行的疼痛主观评估进行了评估和比较。
两侧在疼痛、肿胀或牙关紧闭方面无统计学显著差异（曼-惠特尼U检验p＞0.05）。然而，根据临床结果，激光治疗侧的肿胀和牙关紧闭情况比安慰剂侧轻。
阻生齿拔除术后立即使用二极管激光进行单次低强度激光治疗可能有助于患者减轻术后牙关紧闭和肿胀的影响。
