Methods: 12 patients were treated with bonded RME appliance to expanse the maxillary arches and with vertical pull chincap to augment anchorage.

 
  • 方法:通過(guò)對 12 例患者在擴弓及內收切牙時(shí)應用牙弓夾板式擴弓矯治器及高位牽引的頭帽頦兜加強支抗。
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