青春期安氏Ⅱ~1错功能矫形治疗后下颌骨旋转研究  

Study of the mandibular rotation of adolescent angle class Ⅱ division 1 malocclusions after orthopedic treatment

作　　者：任小华[1] 韩红娟[1] 吴浩[1] REN XiaoHua;HAN HongJuan;WU Hao(Department of Stomatology , Sichuan Academy of medical Sciences, Sichuan Provincial People＇s Hospital, Chengdu 610072, China)

机构地区：[1]四川省医学科学院.四川省人民医院口腔科,四川成都610072

出　　处：《西部医学》2018年第6期910-914,共5页Medical Journal of West China

基　　金：四川省卫计委科研资助项目(169J473)

摘　　要：目的探讨青春期安氏Ⅱ~1错患者功能矫行治疗后下颌骨旋转的变化。方法将70例青春期安氏Ⅱ~1错颌患者随机分为治疗组(G1)与对照组(G0),每组各35例,对照组不做治疗,观察12个月,治疗组采用肌激动矫治器治疗12个月,实验开始(T1期)与结束(T2期)拍摄所有患者的头侧位X光片,采用结构重叠法对头侧位X光片上相关指标进行测量分析,所得数据进行统计分析。结果治疗组下颌综合长度明显增加,髁突生长量明显增加,生长方向明显向后向上,髁突的生长方向与髁突总旋转和基质内旋转明显正相关,生长量与下颌旋转无相关性。结论青春期安氏Ⅱ~1错行功能矫形治疗能通过改变髁突生长方向和生长量来取得较好的临床治疗效果,对下颌骨的旋转影响不明显。Objective To study the mandibular rotation of adolescent angle class Ⅱ division 1 malocclusions after orthopedic treatment. Methods 70 adolescent patients with angle class Ⅱ division 1 malocclusions were divided into treatment group （01）（average aged 10.1 ± 2.3 year ） treated with activator for 12months and control group （GO） （average aged 9.2±4. lyear ） used as control. The lateral cephalograms of each patients were gotten at pretreatment （T1） and posttreatment （T2） times of the study. Structure superposition method was used to analyze the relate indexes on the lateral cephalograms. Results Functional orthopedic treatment of adolescent patients with angle class Ⅱ division 1 malocclusions had no effects on the mandibular rotations, but it can change the growth amount and direction of the condylar which direction became more backward and upward, while the growth amount became larger than the untreated control group. The condylar growth direction showed positive relation to mandibular total rotation and intramatrix rotation. Conclusion Orthopedic treatment of adolescent angle class Ⅱ division 1 malocclusions could get good result from regulate the growth direction and amount of condylar and had no effect to the mandibular rotations.

关 键 词：安氏Ⅱ^1错 下颌骨旋转 功能矫形 髁突生长 

分 类 号：R782[医药卫生—口腔医学]