低能量雷射於齒顎矯正領域應用之文獻回顧

Literature Review: Low Level Laser Therapy in Orthodontics

矯正療程過長常是患者決定是否接受治療的考量因素之一，而治療效率的提高除了運用適當的力學設計將力量有效率地傳導至牙齒上，以避免力學副作用產生於錨定上，牙齒移動速度的生理限制更是重要因子。低能量雷射已有臨床實驗証實可加速牙齒移動速度，使用特殊參數設定，提供一個無明顯副作用的非侵入性療法。本文針對低能量雷射之作用機制、動物實驗及臨床應用作文獻回顧及探討。

Treatment duration is one of the major determinants for patients receiving orthodontic treatment. To avoid long treatment time, orthodontists have to design sound mechanics meeting the anchorage demands and delivering appropriate force system to the tooth and its supporting tissues. However, the more crucial factors related to the treatment efficiency may lie in the individual biological response which is still largely unknown, to the force system which orthodontists regularly delivered. Low level laser with specific power setting has been shown as a non-invasive adjunctive treatment without obvious side effect for facilitating orthodontic movement in some clinical studies. This article reviews mechanism, animal and clinical studies about low level laser therapy used orthodontics.