上颌单颌拔牙矫治成人安氏Ⅱ错(牙合)的头影测量研究  

Cephalometric changes of orthodontic treatment for Angle ClassⅡdivision 1 malocclusion in adult patients

作　　者：黄红亮[1] 安爱群[2] 卢红飞[2] 艾虹[2] 

机构地区：[1]江苏省常州市口腔医院正畸科,常州213003 [2]广州中山大学附属第三医院口腔科

出　　处：《北京口腔医学》2011年第6期346-348,共3页Beijing Journal of Stomatology

摘　　要：目的研究成人安氏Ⅱ~错（牙合）病例拔除上颌第一前磨牙矫治前后的硬组织变化,并探讨其矫治特点。方法采用上述拔牙模式治疗20例成人安氏Ⅱ~1错（牙合）病例,分析治疗前后X线头影测量结果,比较矫治前后的硬组织变化。结果下颌骨有顺时针方向旋转趋势。覆盖减少主要由上切牙内收完成,与下切牙关系不明显。结论成人安氏Ⅱ~1错（牙合）病例采用上颌单颌拔牙模式,能改善前牙覆盖,建立或维持后牙良好的尖窝锁结关系且缩短疗程。Objective To investigate the changes of hard tissue before and after orthodontic treatment for Angle ClassⅡdivision 1 malocclusion adult patients with the first maxillary premolars extracted.Methods Twenty adult patients of Angle ClassⅡdivision 1 malocclusion received orthodontic treatment with extraction of two maxillary first premolars.Cephalometric analysis was carried out and compared before and after treatment.Results There was a clockwise rotation in mandible.The overjet was reduced maily by upper incisors retraction,which had no significant relation to lower incisor inclination.Conclusion The treatment of Angle ClassⅡdivision 1 malocclusion in adult patients by extraction of two first maxillary premolars is satisfactory.The deep overjet can be corrected,good occlusion relationship achieved and treatment time shortened.

关 键 词：成人正畸 上颌单颌拔牙 安氏Ⅱ~1错(牙合) 

分 类 号：R783.5[医药卫生—口腔医学]