前牙开正畸治疗和外科治疗的限度  

Anterior open bite: surgically or orthodontically treated

作　　者：邹冰爽[1] 曾祥龙[1] 曾应魁 

机构地区：[1]北京大学口腔医学院正畸科,100081 [2]台湾中山医学院牙医系矫正科

出　　处：《中华口腔医学杂志》2002年第2期139-141,共3页Chinese Journal of Stomatology

基　　金：卫生部科学研究基金资助课题 ( 99113)

摘　　要：目的　探讨前牙开畸形正畸治疗与外科治疗的界限。方法　选择正畸治疗开患者70人 ,平均年龄 18 0岁 ;外科治疗开患者 14人 ,平均年龄 2 5 1岁。对经计算机头影测量得出的15 4项颅面软硬组织测量项目值进行单因素和多因素判别分析。结果　下切牙下颌平面角 (L1MP)可作为单因素判别指标 ,当其值≤ 89 5°时 ,可判断为外科治疗的适应证 ,>89 5°时则判断为正畸治疗。根据多因素逐步判别分析建立的判别函数 :Z =- 0 80 188L1MP +0 9140 1Age +0 6 71111Antigonialnotch MP +0 5 99992SNPg ,当Z≥ 0时 ,判定为外科治疗组 ,Z <0时判为正畸治疗组。结论单因素判别指标和多因素判别函数均可用于确定正畸治疗与外科治疗的界限 ,判别函数优于单因素判别指标。Objective To study the boundary between orthodontic and surgical treatment in correction of anterior open bite. Methods 70 cases (18 0 ages in average) treated orthodontically and 14 cases(25 1 ages in average) treated surgically were chosen. 154 hard and soft tissue measurements were analyzed by statistical software. Results A diagnostic index, L1MP, was gained with simple factorial analysis. L1MP≤89 5 was bound to be treated with surgery. A discriminate function, Z=-0 80188 L1MP+0 91401 Age+0 671111 Antigonial notch MP+0 599992 SNPg, was produced by multiple factorial discriminate analysis. Z<O is an indication of orthodontic treatment. Conclusion The diagnostic index and discriminate function were both useful in determining which method to be chosen in treatment of anterior open bite. The discriminate function was tested to be more efficient than the diagnostic index.

关 键 词：错HE 口腔正畸学 前牙开HE 限度 

分 类 号：R783.5[医药卫生—口腔医学]