The Eighteen-month Follow-up of Orthodontic Treatment Outcome with Bony Anchorage for a Severe Skeletal Class Ⅱ Anterior OpenBite Malocclusion-A Case Report

應用迷你骨板輔助嚴重骨性二級異常合併前牙開咬的矯正治療及追蹤十八個月結果－病例報告

謝兆隆(John Siu-Lung Tse) ； 黃丞聰(Cheng-Tsung Huang) ； 張瑞青(Jenny Zwei-Chieng Chang) ； 賴向華(Eddie Hsiang-Hua Lai) ； 姚宗珍(Chung-Chen Jane Yao) ； 陳羿貞(Yi-Jane Chen)

《中華民國齒顎矯正學雜誌》 22卷2期 (2010/06) Pp. 44-55

https://doi.org/10.30036/TJO.201006.0006

摘要

在顱顏齒顎形態的分析中，骨性二級咬合異常的成因可能是上顎骨生長過度，或是下顎骨生長不足，或者合併上述兩種原因。造成前牙開咬的原因則包括：口呼吸、吐舌頭、吸手指等不良習慣以及上下顎後牙過度生長。臨床治療上，骨性二級咬合異常合併前牙開咬程度輕微者，可採用非手術性的齒列矯正方式治療；但骨骼關係差異太大時，應採用合併正顎手術的矯正方式處理。本文主要是報告－應用迷你骨板輔助治療嚴重骨性二級咬合異常合併前牙開咬的病例，並探討其在完成治療一年半後的結果與穩定性。

關鍵字

骨性二級咬合異常 ； 前牙開咬 ； 迷你骨板

並列摘要

The etiology of skeletal Class Ⅱ malocclusion may include excessive growth of the maxilla, deficient growth of the mandible, or the combination of both. Oral habits such as mouth breathing, tongue thrusting, and thumb sucking can cause anterior open bite. Meanwhile, the vertical overgrowth of posterior dentoalveoalr process may be another contributory factor.
The treatment options for skeletal Class Ⅱ malocclusion with anterior open bite should be planned according to the discrepancy of the inter-jaw relationship. If the discrepancy is mild or moderate, non-surgical approach with conventional orthodontic treatment will suit this situation. However, orthodontic treatment combined with orthognathic surgery will be required if the discrepancy is severe. This paper reports the conventional orthodontic treatment with application of mini-plates and transpalatal arch for an adult female patient with severe malocclusion of skeletal Class Ⅱ and anterior open-bite. The stability of the outcome was evaluated in one and half years after the active treatment.

並列關鍵字

skeletal Class Ⅱ malocclusion ； anterior openbite ； mini-plate