Prasad Subramaniam Murugesan Vignesh, Prasanna Turuvekere Ramaiah, Kumaran Vijayarangan, Venkatachalam Nagaraj, Ramees Mohamed, Abraham Esther A
Department of Orthodontics, JKK Nattraja Dental College, Komarapalayam, Tamil Nadu, India.
Department of Orthodontics, Sri Siddhartha Dental College and Hospital, Tumakuru, Karnataka, India.
J Pharm Bioallied Sci. 2019 May;11(Suppl 2):S228-S231. doi: 10.4103/JPBS.JPBS_303_18.
Pain is an unavoidable squeal of orthodontic treatment and it is known to decrease patient compliance and eventually affects treatment results. Numerous methods are available in literature to manage orthodontic pain after activation but they have their own limitations. This has led to exploring further options for management of pain.
The aim of this study was to evaluate the effectiveness of low-level laser therapy (LLLT) in alleviating orthodontic pain after activation.
20 subjects were randomly divided into an experimental and a control group. Each participant was given a retraction force of 200 gm/cm/side. Subjects in the experimental group were exposed to low-level laser light at 980 nm and those in the control group were exposed to red LED light as placebo. The pain perceived after 0 hour, 1 hour, 3 hours, 48 hours, and 1 week of activation was recorded by patient using Visual Analog Scale. Statistical analysis was done using Mann-Whitney test.
Results of the study showed that pain experienced by the subjects after orthodontic activation was higher in experimental group at T than in placebo group. At T, T, T, and T, the pain experienced by the subjects was less in the experimental group compared to the placebo group. Pain experienced by the subjects in the experimental group at T was significantly less as compared to those in the placebo group.
A single dose of LLLT at 980nm, 2.5 W/cm, and 600 J is effective in relieving orthodontic pain after activation.
疼痛是正畸治疗中不可避免的困扰，已知它会降低患者的依从性并最终影响治疗效果。文献中已有多种方法可用于处理正畸加力后的疼痛，但它们都有各自的局限性。这促使人们探索更多疼痛管理的选择。
本研究的目的是评估低强度激光疗法（LLLT）在减轻正畸加力后疼痛方面的有效性。
20名受试者被随机分为实验组和对照组。每位参与者每侧施加200克/厘米的牵拉力。实验组的受试者接受980纳米的低强度激光照射，对照组的受试者接受红色发光二极管光照射作为安慰剂对照。患者使用视觉模拟量表记录加力后0小时、1小时、3小时、48小时和1周时感受到的疼痛。采用曼-惠特尼检验进行统计分析。
研究结果表明，正畸加力后实验组受试者在T时的疼痛高于安慰剂组。在T、T、T和T时，实验组受试者的疼痛低于安慰剂组。实验组受试者在T时的疼痛明显低于安慰剂组。
单次剂量的980纳米、2.5瓦/平方厘米、600焦耳的低强度激光疗法在减轻正畸加力后的疼痛方面是有效的。
