乳牙期及替牙期前牙反是儿童常见错畸形,前牙反的早期矫治具有重要意义。作者在临床中采用改良式Activator矫治器治疗23例乳牙期前牙反,它制作简单,戴用舒适,患儿易配合,矫治效果良好,疗程短。现介绍如下:材料与方法1、临床资料23例乳牙期、替牙期前牙反患者,男性11 Primary deciduous period and molar periodontics is a common childhood malocclusion deformity, anterior correction of anterior patella is of great significance. The authors in the clinical use of modified Activator appliance for the treatment of 23 cases of deciduous ankle during the deciduous teeth, it is simple to make, comfortable to wear, easy to coordinate with children, correction of good results, short course of treatment. Are introduced as follows: Materials and methods 1, clinical data 23 cases of deciduous teeth, anterior teeth prosthetic patients, male 11