Barbs on the crown of gilded wire.
镀金丝网顶端的倒刺。
Methods the proper cases were selected to be ligated with wire, pulp extirpation, peridental therapy and crown repair in conservative treatment.
方法选择合适病例，采用钢丝结扎，根管治疗和牙周治疗、全冠修复等多种方法，对磨牙纵折予以保守治疗。
The placement of the incisor teeth bracket was in the middle of the clinical crown, and retention arch wire was straight wire without step bends.
其最大特点是既反映大多数牙的临床牙冠中点，又对某些牙位托槽位置进行了调整，实现了无弓丝弯曲的直丝弓矫治目的。
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