文獻回顧：皮質骨切開術輔助矯正治療

Literature Review: Corticotomy-assisted Orthodontic Treatmentt

皮質骨切開術輔助矯正治療（corticotomy-assisted orthodontics，簡寫CAOT）可以藉由增加局部骨加速現象（regional acceleratory phenomenon）來縮短牙齒矯正的時間。皮質骨切開術（corticotomy）所造成牙周傷口癒合（periodontal wound healing）和牙齒矯正力（orthodontic force）所造成的牙周組織反應極為相似，若兩者可以互相加成，共同促進骨重塑（bone remoldeling），理論上會加速矯正的牙齒移動。對於皮質骨切開術輔助矯正治療（corticotomy-assisted orthodontics）的臨床應用，有許多不同的術式與策略，然而在考量病患整體的受益與損害比例，使用微創皮質骨切開術（minimal invasive corticotomy）來輔助矯正治療或許會有較多的可行性；對於其臨床效益，我們仍需要更嚴謹的臨床實驗以得到更高等級的醫療實證。

Corticotomy-assisted orthodontics (CAOT) can shorten orthodontic treatment time by increasing regional acceleratory phenomenon. The periodontal wound healing caused by corticotomy are similar to the periodontal tissue reaction induced by orthodontic force; if the two phenomena could be accumulated and both enhancing bone remodeling, orthodontic tooth movement should be accelerated theoretically. There are many different kinds of procedures and strategies in the clinical application of corticotomy-assisted orthodontics, but when the cost and benefit ratio for the patients are thoroughly considered, using minimal invasive corticotomy to assist orthodontic treatment may be more practical. As for the clinical efficacy of minimal invasive corticotomy, more well-controlled clinical studies should be doneto gain higher level of evidence.