１９８７年１月～１９９８年５月，我们采用托钩＋橡皮筋牵引法矫治儿童前牙反牙合８０例，结果满意，报告如下。１　材料与方法　①一般资料：本组８０例均为门诊治疗者。男３７例，女４３例。年龄８～１３岁。８０例儿童混合牙列期前牙反牙合情况如下：８～９岁，１０～１１ From January 1987 to May 1998, 80 cases of anterior occlusal occlusion of the anterior teeth of children were treated with a hook + rubber band traction method. The results were satisfactory, the report is as follows. 1 Materials and Methods ① General Information: This group of 80 patients were outpatient treatment. 37 males and 43 females. Age 8 to 13 years old. Eighty children with mixed dentition anterior crossbite the situation as follows: 8 to 9 years old, 10 to 11