2×4矫治技术矫正替牙期前牙反的临床分析

The clinical analysis of 2×4 corrective technique applied in correcting the anterior crossbite during the mixed dentition

目的探讨2×4矫治技术在矫正替牙期前牙反中的作用、特点和临床疗效。方法应用2×4矫治技术配合上颌后牙垫和Ⅲ类牵引矫正替牙期前牙反。结果2×4矫治技术可以改正前牙反,缩短疗程,同时还可以减少患者复诊的次数。结论2×4矫治技术矫正替牙期前牙反是一种很有效的方法。

Objective To discuss the clinical effects and characteristics of 2×4 corrective technique applied in correcting the anterior crossbite during the mixed dentition. Methods The 2×4 corrective technique and biteplate of posterior upper teeth as well as Class Ⅲ elastic force was applied to correct the anterior crossbite of mixed dentition. Results This method was able to correct the anterior crossbite and also to reduce the time of treatment and to spare the frequency of seeing the doctor again. Conclusion 2×4 corrective technique is an effective method of correcting the anterior crossbite during the mixed dentition and is valuable to spread.