骨性Ⅱ类错成人与少年治疗前后骨骼变化的对比  

A comparison of skeletal changes between adult and adolescent with skeletal class Ⅱ malocclusions before and after therapy

作　　者：赵健慧[1] 丁云[1] 

机构地区：[1]北京大学口腔医学院.口腔医院第二门诊部正畸科,北京100101

出　　处：《北京大学学报（医学版）》2010年第5期578-581,共4页Journal of Peking University:Health Sciences

摘　　要：目的:对比少年与成人骨性Ⅱ类均角安氏Ⅱ类1分类患者治疗前后骨骼变化的异同。方法:选择少年与成人女性骨性Ⅱ类均角安氏Ⅱ类1分类错患者各30例,两组的治疗方法以及疗程均相互匹配。对两组患者治疗前、后的头颅侧位片进行对比,比较其治疗前、后骨骼变化的异同,统计学分析方法采用配对t检验。结果:治疗后少年组与成人组SNA、SNB及ANB均减小,但两组间差异并无统计学意义。少年组治疗后下颌骨长度、前面高及后面高均有增加,两组间差异有统计学意义,但治疗前后的前下面高与前总面高之比以及后下面高与后总面高之比保持不变,且两组之间差异也无统计学意义。结论:虽然少年组在治疗前后上、下颌骨均有一定程度的生长,但是成人与少年骨性Ⅱ类均角患者的上、下颌骨关系的变化并无明显差异。Objective：To compare skeletal changes after orthodontic treatment between adults and adolescents skeletal class Ⅱ malocclusions with average mandible plane angle.Methods：In our study,30 adolescent girls and 30 adult females who had skeletal class Ⅱ and Angle class Ⅱ,division 1 malocclusions were selected.The two groups were matched by gender,treatment period and method.Cephalometric radiographs taken before and after treatment were traced and measured.Student＇s t-test was used.Results：After treatment,SNA,SNB and ANB decreased in both groups,but no significant difference was found between the two groups.The length of mandible,anterior and posterior facial heights increased significantly in adolescents,but the ratio of lower and total anterior and posterior facial heights remained unchanged and no difference was found between the two groups.Conclusion：Although some maxillary and mandibular growths were found in adolescents,the skeletal changes during treatment in skeletal class Ⅱ malocclusion with average mandible plane showed no difference between adults and adolescents.

关 键 词：错[牙合] 安氏Ⅱ类 正畸学 矫正 测颅法 骨骼 

分 类 号：R783.5[医药卫生—口腔医学]