In order to explore the effect of the compound straight wire appliance on the correction of anterior cross-bite, molar buccal tubes and bicuspid brackets were fixed in the buccal side of occlusal pad.
为探索混合式直丝弓矫治器治疗前牙反牙合的有效性，采用磨牙颊面管和双尖牙托槽固定在牙合垫的颊面，使牙合垫和直丝弓矫治器合二为一而成混合式直丝弓矫治器。
Objective: To study the treatment method of the skeletal anterior cross bite.
目的：探寻临床对前牙骨性反牙合的有效治疗方法。
Objective: to evaluate the treatment efficiency of facial mask orthodontic distraction therapy on children with skeletal cross bite of anterior tooth.
目的：评估面具前方牵引矫治器在儿童骨性前牙矫治中的临床效果。
应用推荐