Objective: to evaluate the effects of bone graft combined porcelain fused to Co-Cr metal crowns splint treatment for conserving liven abutment.
目的：评价牙周植骨术联合夹板式钴铬合金烤瓷联冠保留末端松动牙的临床疗效。
The improved preventing sliding splint over bone joint was used as external fixation.
而外固定采用改良式防滑脱超关节夹板固定。
The improved preventing sliding splint over bone joint was used as external fixation.
而外固定采用改良式防滑脱超关节夹板固定。
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