“2×4”简化固定矫治器与垫式活动矫治器的临床应用对照

The contrast of clinical application of "2×4" simplified fixed orthodontic appliances and occlusal pad removable orthodontic appliances

目的:本研究旨在比较“2×4”简化固定矫治器与垫式活动矫治器的矫治效果。方法:本文对20例8至14岁前牙反儿童分别采用两种不同的矫治方法,对矫治前后X线头颅定位片及模型进行对比观察。结果:使用固定矫治器组,即“2×4”技术多用唇弓组,治疗效果明显优于垫式活动矫治器组,同时分析了两种方法的矫治特点,适应证。结论:提出对反覆过大者,用活动矫治器较省时,对反覆盖过大者用固定矫治效果颇佳。

Objective The purpose of this experimental study was to compare between ＂2×4＂ technique of labial bow and occlusal pad removable orthodontic appliances. Methods This thesis discusses two different orthotherapies in treating 20 children patients ranging from 8-14 ages who suffer anterior crossbite,Observes and compares the cephalometric roentgenogram and its model before and after orthopedics. Results We saw that the group who are treated with fixed orthodontic appliance, namely： the group under treatment of ＂2×4＂ technique of labial bow, its effect is much superior to the group under treatment of occlusal pad removable orthodontic appliances. Meanwhile, this thesis also analyzes the characteristics of the two treatments, its adaptability. It indicates that to those who have extra reversed overbites. Conclusion It will take less time to use removable orthodontic appliances, and to those who have extra reversed overjets, fixed orthodontic appliance will have better effect.