成人骨性II类错牙合畸形患者的正畸正颌联合治疗进展.doc.doc

***骨性 II 类错牙合畸形患者的正畸正颌联合治疗进展[ 摘要] 骨性 II 类错牙合畸形表现为下颌骨相对于上颌骨处于后缩位置或上颌骨相对于下颌骨处于前突位置, ANB 角大于 5° 。患者前牙深覆牙合、深覆盖,自然状态下双唇不能闭合, 开唇露齿, 露龈笑, 可同时伴有下唇和颏部后缩, 严重者出现上气道的狭窄, 对患者的外观容貌和心理健康造成不利影响。对于严重***骨性 II 类错牙合畸形,只能通过正畸正颌联合治疗才能达到理想的矫治目标, 获得良好的颌骨间协调的关系, 明显改善患者面部软组织侧貌。本文就***骨性 II 类错牙合畸形的正畸正颌联合治疗做一综述。中国论文网/view- [ 关键词] 骨性 II 类;错牙合畸形;正畸;正颌;手术[ 中图分类号] [ 文献标志码]A[ 文章编号]1008-6455 ( 2015 ) 17-0073-04 Abstract : Skeletal class II lusion showed mandibular retrusion or maxillary prognathism in relative position , the ANB angle is higer than 5 had anterior deep overbite 、 overjet , and gummy couldn ’t be closed at the natural state , often panied by the retrusion of the lower lip and the cases might have upper airway could cause adverse effect on the patients with the appearance of the face and mental serious adults with skeletal class II lusion , only through the orthodontic bined with Orthognathic treatment can obtain the good relationship , significantly improve patients ’ this paper , these treatments are made up toa summary. Key words : skeletal class II; lusion ; orthodontics ; orthognathics ; surgery 骨性Ⅱ类错牙合畸形表现为下颌骨相对于上颌骨处于后缩位置或上颌骨相对于下颌骨处于前突位置, ANB 角大于 5° [1] , 是正颌手术最常见的适应证之一。患者前牙深覆牙合、深覆盖, 自然状态下双唇不能闭合, 开唇露齿, 露龈笑, 可同时伴有下唇和颏部后缩, 严重者出现上气道的狭窄[2] ,对患者的外观容貌和心理健康造成不利影响。骨性Ⅱ类错牙合畸形的治疗方法有:①早期功能矫治;②正畸掩饰性治疗;③正畸正颌联合治疗。青