错(牙合)畸形矫治后切牙转矩角对矢状骨面型代偿的研究  

The compensation of post-treatment incisor torque in sagittal jaw relationship

作　　者：杨敏志[1] 许天民[1] 林久祥[1] 

机构地区：[1]北京大学口腔医学院口腔医院正畸科

出　　处：《中华口腔医学杂志》2006年第10期610-611,共2页Chinese Journal of Stomatology

基　　金：卫生部部属(管)医疗机构临床学科重点项目建设基金(20011218)

摘　　要：目的研究正畸矫治后切牙转矩角对矢状骨面型的代偿情况。方法测量157例错(牙合)畸形矫治满意患者治疗后的矢状骨面型头影测量指标,与切牙转矩角进行相关分析和分组比较。结果与Ⅰ类骨面型相比,Ⅲ类骨面型上切牙唇倾,下切牙舌倾;Ⅱ类骨面型相反。Ⅰ类骨面型患者矫治后,切牙转矩角对矢状骨面型的代偿首先并主要发生在下颌:ANB 角>3°时,下切牙唇倾达到5°。结论矫治不同矢状骨面型错(牙合)畸形患者时,应根据预测的矫治后 ANB 角度,调整切牙转矩角。Objective To investigate the dental compensation in different sagittal jaw relationships. Methods One hundred and fifty-seven post-treatment cases with satisfied outcome were chosen. Computerized cephalometric analysis was performed to evaluate the sagittal jaw relationship. Incisor torque were measured based on study models. Correlation analysis was performed. Results Compared with skeletal class Ⅰ cases, the upper incisors of skeletal class Ⅲ cases were more proelined, and lower incisors were more retroelined;the opposite result was found in skeletal class Ⅱ cases. Dental compensation in class I cases took place primarily at lower incisors . Conclusions Incisor torque control was important in patients with various sagittal jaw relationships.

关 键 词：转矩 错袷 正畸学 矫正 

分 类 号：R783.5[医药卫生—口腔医学]