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。
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。
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