片段弓技术矫治安氏Ⅱ类1分类错  

Correction of Angle class Ⅱ division 1 malocclusion by means of segmental approach

作　　者：钱玉芬[1] 龚昕[1] 宫耀[1] 

机构地区：[1]上海第二医科大学附属第九人民医院口腔正畸科,200011

出　　处：《实用口腔医学杂志》2001年第3期191-193,共3页Journal of Practical Stomatology

摘　　要：目的 :评价应用片段弓技术治疗安氏 类 1分类错牙合的效果。方法 :应用片段弓技术对 7例安氏 类 1分类患者 ,通过拔除上颌第一前磨牙及下颌第二前磨牙 ,使下颌第一磨牙较快地向近中移动 ,纠正磨牙 类错牙合关系。结果 :X线头影测量分析显示本方法能够有效改善面部侧貌 ,控制下面部高度 ,控制牙合平面角及下颌平面角 ,使下前牙直立于下颌骨基骨之上 ,促进下颌骨向有利的方向生长。结论 :片段弓技术对于安氏 类 1分类患者是一种操作简单、有效、可推广运用的方法。砄bjective:To evaluate the effect of segmental approach in the treatment of Angle class Ⅱ division 1 malocclusion.Methods:7 cases of classⅡ,division 1 maloclusion were treated.Upper first premolar and lower second premolars were extracted in all cases.Lower first molars were mesially moved by means of segmental arch. Cephalometric analysis was used to evaluate the effects of the treatment.Results:Facial profile improvement and lower anterior facial height maintenance were achieved.The occlusion plane angle,mandibular plane angle were well controlled with lower anterior teeth upright on the lower basal bone.All patients represented good mandible response.Conclusion:Segmental technique is a simple and effective approach in correcting class Ⅱ,division 1 maloclusion

关 键 词：安氏Ⅱ类错He 片段弓 固定矫治器 正畸治疗 

分 类 号：R783.5[医药卫生—口腔医学]