下颌前伸矫治器治疗AngleⅡ类错  

Treatment of Class Ⅱ Malocclusion with the Mandibular Protrction Appliance.

作　　者：陈国新[1] 袁文钧[1] 贺红[1] 华先明[1] 沈真祥[1] 

机构地区：[1]武汉大学口腔医学院,湖北武汉430079

出　　处：《口腔医学纵横》2001年第2期135-136,共2页Journal of Comprehensive Stomatology

摘　　要：目的 :了解下颌前伸矫治器 (MandibularProtractionAppliance ,MPA)对AngleⅡ类错 牙合的治疗效果。方法 :选择 13例AngleⅡ类错牙合病人 ,男 6例 ,女 7例 ,最大 13岁 ,最小 10岁 ,均为替牙晚期或恒牙早期。X线头影测量显示主要为下颌后缩及轻微上颌前突 ,左手腕片显示为生长发育高峰期或高峰前期 ,所有病人用下颌前伸矫治器进行治疗。结果 :平均疗程 5 .6个月 ,X线头影测量结果主要为SNA增大 ,ANB减小 ,Go -Co增大 ,经统计学处理有显著差异 ;U1-L1、U1-NA(角度 )、U1-NA(距离 )、L1-NB(角度 )、L1-NB(距离 )均无明显改变。结论 :下颌前伸矫治器治疗早期Angle二类错 牙合可取得明显的骨骼改变。Objective:To investigate the effectiveness of the mandibular Protraction appliance in the treatment of class Ⅱ malocclusion.Methods:Thirteen class Ⅱ patients (aged 10～13 years,male 6,femal 7) with mandible retrusion and slight maxillary protrusion were included.Radiographs of the left hand and wrist showed the patients were at the pubertal or pre pubertal stage.All the patients were treated with the mandibular protraction appliance.Resalts:The duration of treatment was 5.6 months on average.SNB increased,ANB decreased,ANS-Me and Go-Co increased.Which showed sygnificant difference by statistical analysis.Conclusions:The obvious skeletal change can be achieved with the mandibular protraction applicance treatment in early class Ⅱ malocclusion. [

关 键 词：下颌前伸矫治器 ANGLE II类错HE 口腔正畸 

分 类 号：R783.5[医药卫生—口腔医学]