A组109颗重度楔状缺损牙，采用铸造钴铬合金桩、钴铬合金烤瓷冠修复；
Patients in group A(109 teeth) were treated with cast cobalt-chromium alloy post, cobalt-chromium alloy handcuffed ceramic crowns;
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。
Objective: to evaluate the effects of bone graft combined porcelain fused to Co-Cr metal crowns splint treatment for conserving liven abutment.
目的研究一种能同时用于烤瓷修复和可摘局部义齿铸造支架的新型钴铬钼合金。
Objective to investigate a kind of Co-Cr-Mo alloys used for both porcelain fused to metal (PFM) restorations and casting framework of removable partial dentures.
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