前方牵引加推磨牙远移治疗反伴牙列拥挤  

Clinical study of maxillary protraction combined with maxillary molar distalization appliance therapy on cross bite and crowding malocclusion

作　　者：梅玉新[1] 钱敏[1] 王俊莱[1] 

机构地区：[1]甘肃省人民医院口腔医疗中心正畸科,甘肃兰州730000

出　　处：《上海口腔医学》2009年第4期383-385,共3页Shanghai Journal of Stomatology

摘　　要：目的:探讨前方牵引加推磨牙远移治疗反伴牙列拥挤的临床效果。方法:采用自行设计的前方牵引加推磨牙远移矫治器装置,对60例生长发育期以上颌后缩为主要表现的骨性安氏Ⅲ类错患者进行矫治,分别于戴矫治器前(T1)、拆除矫治器后(T2)及矫治器拆除后1a(T3)取模型以及拍摄头颅侧面定位片测量分析,采用SPSS10.0软件包进行单因素方差分析。结果:60例患者治疗前上牙弓长度严重不足,牙列拥挤,而治疗后牙弓长度明显加长,拥挤解除,治疗前后牙弓长度差异显著(P<0.01),面型改善明显。治疗完成时和矫治器拆除后1a,牙弓长度无显著差异,未出现磨牙区牙列拥挤。结论:前方牵引加推磨牙远移可明显增加牙弓长度,解除牙列拥挤。PURPOSE：To investigate the influence of maxillary protraction combined with maxillary molar distalization appliance therapy on skeletal Class Ⅲ cross bite malocclusion.METHODS：60 patients with cross bite and crowding malocclusion were treated with maxillary protraction combined with maxillary molar distalization appliance.The arch length was analyzed before wearing appliance（T1）,after debonding appliance（T2）,and one year after debonding appliance（T3）.SPSS10.0 software package was used for ANOVA.RESULTS：Before therapy,the maxillary arch length was not enough with arch length discrepancy.After active treatment,the device had extended the length of the upper dental arch significantly to relieve crowding and change the cross bite.Esthetics were greatly enhanced.CONCLUSIONS：Maxillary protraction combined with maxillary molar distalization appliance therapy change the maxillary arch length.However,further study is necessary to understand the long-term clinical effect.

关 键 词：前方牵引 推磨牙远移 骨性安氏Ⅲ类错[牙合] 上颌后缩 

分 类 号：R783.5[医药卫生—口腔医学]