摘要：目的：系统介绍改良Lokar装置推磨牙向后的制作和临床应用，探讨矫治器的矫治效果。方法：对7例患者13颗牙齿应用改良Lokar装置推磨牙向远中，并对临床效果作总结。结果：经4～6个月临床应用，磨牙向远中移动，获得间隙6.2mm，固定矫治器矫治后，前牙覆盖明显较矫治前缩小1.2mm，第二双尖牙间宽度增加了1.4mm，第一磨牙间宽度增加1.6mm。结论 ：改良Lokar磨牙远移器是一种简便、安全、有效的非依赖性矫治器。

    关键词：Lokar装置；安氏Ⅱ类错；方丝弓矫治器

    The Clinical Study Of Distalizing Upper Molars By Lokar maxillary molar distalization appliance

    CHEN Si-jun,PU Lu-ming,TANG Jing,et al

    (Department of Dentistry ,The First People's Hospital of Yancheng City,Jiangsu Yancheng 224001, China)

    Abstract：Objective：To introduce the construction and use of Lokar maxillary molar distalization appliance.Method：Lokar maxillary molar distalization appliance was used to distalize maxillary molar in 7 cases(13teeth).Result：maxillary molar distalization appliance 6.2mm after 4 months to 6 months.Conclusion：Lokar maxillary molar distalization appliance is a simple , useful, effective,noncompliance appliance.

    Key words：Lokar maxillary molar distalization；Appliance classⅡmalocclusion orthodontis；Edgewise technique

    我科自1999年以来引用改良Lokar磨牙远移器 ......