Treatment of Class II Division 1 Malocclusion with High Mandibular Plane Angle by Miniscrews-A Case Report

以迷你骨釘治療安格氏二級異常咬合第一分類合併高下顎平面角─病例報告

沈心嵐(Hsin-Lan Shen) ； 劉人文(Eric Jein-Wein Liou)

《中華民國齒顎矯正學雜誌》 23卷4期 (2011/12) Pp. 42-51

https://doi.org/10.30036/TJO.201112.0005

摘要

本病例報告為一位16歲之女性患者，由於上前牙突出而前來門診尋求治療。經檢查診斷為骨性二級與齒列安格氏二級第一分類異常咬合，合併有微笑時露出牙齦、高下顎平面角和右下第一大臼齒缺失。治療方式為全口齒列矯正，拔除上顎第一小臼齒及左下第一小臼齒，並使用暫時性錨定裝置將上下齒列的前牙以及後牙進行下壓的牙齒移動。患者經矯正治療後，微笑時牙齦露出的量減少並且下顎呈現逆時針旋轉，側面觀獲得較明顯的下頦曲線。治療結果顏面外觀獲得良好的改善。本篇亦將就治療計畫與迷你骨釘的使用做一探討。（J. Taiwan Assoc. Orthod. 23（4）: 42-51, 2011）

關鍵字

安格氏二級異常咬合第一分類 ； 高下顎平面角 ； 暫時性錨定裝置

並列摘要

This 16-year-old female presents with Class II Division 1 subdivision right malocclusion, complicated by gummy smile, large mandibular plane angle and the mandibular right first molar missing. Treatment consisted of 4 temporary anchorage devices (TADs) application and extraction of bilateral maxillary first premolars and the mandibular left first premolar. Bimaxillary anterior and posterior teeth were intruded by miniscrews for counterclockwise rotation of the mandible. A very favorable result was achieved due to reduction of gingival display and the mandibular plane angle was decreased successfully. (J. Taiwan Assoc. Orthod. 23(4): 42-51, 2011)

並列關鍵字

Class II Division 1 malocclusion ； high mandibular plane angle ； temporary anchorage devices