12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.
通过对 12 
患者在扩弓
内收切牙时应用牙弓夹板式扩弓矫治
位牵引的头帽颏
加强支抗。
12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.
通过对 12 患者在扩弓内收切牙时应用牙弓夹板式扩弓矫治位牵引的头帽颏加强支抗。
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