多曲方丝弓技术矫治恒牙期骨性Ⅲ类错的颌面变化

华西口腔医学杂志

多曲方丝弓技术矫治恒牙期骨性Ⅲ类错的颌面变化

晋长伟,林久祥,徐宝华

北京大学口腔医院　正畸科,北京100081

收稿日期:2004-06-25 修回日期:2004-06-25 出版日期:2004-06-20 发布日期:2004-06-20
通讯作者: 晋长伟,Tel:010-86301313
作者简介:晋长伟(1959-),男,河北人,副主任医师,硕士
基金资助:
“985”学科项目

Research of Cranio-occlusional Change of Skeletal ClassⅢMalocclusion in Permanent Dentition Treated by the Multiloop Edgewise Arch Wire Technique

JINChang-wei, LINJiu-xiang, XUBao-hua

Dept. ofOrthodontics, School ofStomatolo- gy, Peking University, Beijing100081, China

Received:2004-06-25 Revised:2004-06-25 Online:2004-06-20 Published:2004-06-20

摘要/Abstract

摘要：

目的　对比多曲方丝弓(MEAW)技术矫治恒牙期骨性Ⅲ类错畸形前后患者颌面变化,了解MEAW技术矫治恒牙期骨性Ⅲ类错畸形的机理。方法　选用0·46 mm×0·64 mm的托槽系统治疗骨性恒牙期Ⅲ类错畸形患者15例。测量矫治前后患者的正中位定位X线头颅侧位片并进行比较。结果　L6-Xi减少2·87 mm, L6/MP增大8·60°,L1-Xi减少2·60 mm,OP/MP增大约2·33°。颌骨变化较小。软组织的变化无统计学意义。结论　 ①MEAW矫治恒牙期骨性Ⅲ类错畸形,主要是通过牙齿的移动和牙槽骨的改变而完成的,骨组织及软组织变化是有限的。②MEAW纠正反,首先是由于磨牙的明显直立、远中移动,使磨牙关系得到明显改善,为下前牙舌向移动提供了宝贵的间隙。③下前牙在舌向移动与倾斜同时略有升高,平面变平。

关键词: 骨性Ⅲ类错畸形, 多曲方丝弓, 短Ⅲ类牵引

Abstract: Objective　To analyze the mechanics in correction of skeletal classⅢmalocclusion with Multiloop Edgewise Arch Wire(MEAW).Methods　15 patients with skeletal classⅢmalocclusion were treated with MEAW technique. Cephalometric analysis was performed with pre-treatment and post-treatment cephalograms. Pairedt-test was conducted to assess the treatment effects.Results　L6-XI decreased by 2·87 mm, L6/MP increased by 8·60°, L1-XI decreased by 2·60 mm, OP/MP increased by 2·33°.Skeleton changed a little. There was no significant change in the soft tissue.Conclusion　①Dento-alveolar compensa- tion is the main change after the treatment byMEAWtechnique;②The improvement in molar relationship and overjet is achieved with upright and distal movement of the lower posterior teeth;③The lower anterior teeth moved lingually and protracted. Occlusal plane is flattened.

Key words: skeletal classⅢmalocclusion, multiloop edgewise arch wire, classⅢelastics

晋长伟,林久祥,徐宝华. 多曲方丝弓技术矫治恒牙期骨性Ⅲ类错的颌面变化[J]. 华西口腔医学杂志.

JINChang-wei, LINJiu-xiang, XUBao-hua. Research of Cranio-occlusional Change of Skeletal ClassⅢMalocclusion in Permanent Dentition Treated by the Multiloop Edgewise Arch Wire Technique[J]. West China Journal of Stomatology.

[1]	李启顺李志华吴建勇. 不同尺寸多曲方丝弓在不同托槽系统中局部载荷挠曲率的实验研究[J]. 华西口腔医学杂志, 2008, 26(05): 486-489.
[2]	胡敏刘磊张丽雯吴宏颜炜群寺田员人. 多曲方丝弓配合前牙区垂直牵引下颌牙齿移动趋势的光弹性研究[J]. 华西口腔医学杂志, 2007, 25(05): 493-496.
[3]	邵玶;闫伟军;安晶涛. 应用多曲方丝弓技术打开咬合的临床效果[J]. 华西口腔医学杂志, 2006, 24(06): 561-562.
[4]	李志华,郭杰,陈扬熙. 快速弯制多曲方丝弓的方法[J]. 华西口腔医学杂志, 2005, 23(03): 268-268.
[5]	王红梅,杨力,纪昌蓉. 用扩弓和多曲方丝弓技术矫治反(牙合)伴下颌偏斜畸形[J]. 华西口腔医学杂志, 2004, 22(05): 406-407.
[6]	尹玉　张力　李济强　邓燕. 多曲方丝弓技术矫正恒牙列骨性开[J]. 华西口腔医学杂志, 2002, 20(01): 71-72.