Int J Prosthodont. 2014 Sep-Oct;27(5):422-4. doi: 10.11607/ijp.3776.
To evaluate the survival of maxillary anterior cantilever resin-bonded metalceramic (MC) and all-ceramic (AC) fixed dental prostheses (RBFDPs).
Between August 2007 and December 2009, 40 patients received 40 RBFDPs made of either cobalt-chromium-ceramic (n = 20) or glass-infiltrated alumina (In-Ceram, Vident; n = 20) and were followed up until December 2012. Restorations were adhesively cemented (Panavia 21, Kuraray).
Two fractures were observed with AC. No debondings were observed with MC (n = 0) but were observed with AC (n = 3). The difference in survival rates of MC and AC was not significant (MC: 100%; AC: 90%; P = .15) (Kaplan-Meier method, confidence interval = 95%).
Cantilever AC RBFDPs could be a promising alternative to MC RBFDPs for replacement of missing anterior incisors, provided that no mechanical complications were experienced with the latter.
评估上颌前悬臂树脂粘结金属陶瓷（MC）和全陶瓷（AC）固定修复体（RBFDP）的存活率。
2007 年 8 月至 2009 年 12 月，40 名患者接受了 40 个由钴铬陶瓷（n = 20）或玻璃渗透氧化铝（In-Ceram，Vident）制成的 RBFDP 治疗，并随访至 2012 年 12 月。修复体采用粘结剂粘结（Panavia 21，Kuraray）。
AC 出现 2 例断裂。MC（n = 0）未观察到脱粘，但 AC（n = 3）观察到脱粘。MC 和 AC 的存活率差异无统计学意义（MC：100%；AC：90%；P =.15）（Kaplan-Meier 法，置信区间为 95%）。
对于缺失的前切牙，悬臂 AC RBFDP 可以替代 MC RBFDP，前提是后者没有发生机械并发症。
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