以陰陽線治療咬合平面傾斜的病患－－病例報告

Management of Occlusal Plane Canting by Yin-Yan Archwire–A Case Report

面對咬合平面傾斜的病患時，最重要的是瞭解其病因的所在，因而制定適合的治療計劃。Burstone1 曾提出適合手術的患者其顏面的傾斜與咬合平面的傾斜關係是一致的。而對非手術的病患來說咬合平面的傾斜則明顯獨立於顏面之外。對單純矯正的患者而言，受限於治療機制無法有效的整體壓入過度萌發的齒列；以往治療這樣的患者並不容易，現在除了骨性錨定可達到這樣的目的2,3,4，是否有其他方式也能達到治療效果？本篇病例報告的患者為一年輕男性，上下顎齒列嚴重擁擠合併深咬咬合，並有顏面不對稱合併咬和平面傾斜的問題。經初期排列整齊後再使用陰陽線半年的時間治療咬合平面傾斜，總共的治療時間為2.9年，成功地改善咬合平面傾斜的問題，並獲得良好的治療結果。

It is important to diagnose the underlying cause of an occlusal plane canting so that an appropriate treatment plan can be efficiently implemented. Burstone1said the patient treated surgically should have the occlusal plane parallel to facial structure. In nonsurgical patient, there may be a cant to the plane of occlusion relative to the face. In the past, this cant was not easily treated because of mechanical difficulties in intruding entire posterior segments. With skeletal anchorage device, we can solve the problem today, but can we do it in a different way? This case report presents a young male suffered from severe crowded dentition with deep over-bite. The mandible deviation and a cant in the occlusal plane are also observed. After initial leveling and alignment, the canted occlusal plane has been successfully altered by using Yin-Yan archwire for six months. The total treatment time was 2.9 years.