anterior expansion arch
常见例句
- Methods To adopt screw expansion appliance to gradually expand posterior and anterior dental arch with 18~33 day activation and 3~6 month retainment.
方法采用螺旋扩大矫治器进行前牙和后牙的扩弓,加力18~33天,戴用保持器3~6个月。 返回 anterior expansion arch