钴铬合金和金铂合金制作的金属烤瓷固定义齿中的陶瓷缺陷：一项回顾性研究
Ceramic Defects in Metal-Ceramic Fixed Dental Prostheses Made from Co-Cr and Au-Pt Alloys: A Retrospective Study.
作者信息
Mikeli Aikaterini, Boening Klaus W, Lißke Benjamin
出版信息
Int J Prosthodont. 2015 Sep-Oct;28(5):487-9. doi: 10.11607/ijp.4234.
PURPOSE
Ceramic defects in porcelain-fused-to-metal (PFM) restorations may depend on framework alloy type. This study assessed ceramic defects on cobalt-chromium- (Co-Cr-) and gold-platinum- (Au-Pt-) based PFM restorations.
MATERIALS AND METHODS
In this study, 147 Co-Cr-based and 168 Au-Pt-based PFM restorations inserted between 1998 and 2010 (139 patients) were examined for ceramic defects. Detected defects were assigned to three groups according to clinical defect relevance.
RESULTS
Ceramic defect rates (Co-Cr-based: 12.9%; Au-Pt-based: 7.2%) revealed no significant difference but a strong statistical trend (U test, P = .082). Most defects were of little clinical relevance.
CONCLUSIONS
Co-Cr PFM restorations may be at higher risk for ceramic defects compared to Au-Pt-based restorations.
目的
烤瓷熔附金属（PFM）修复体中的陶瓷缺陷可能取决于基底合金类型。本研究评估了钴铬（Co-Cr）基和金铂（Au-Pt）基PFM修复体上的陶瓷缺陷。
材料与方法
本研究中，检查了1998年至2010年间（139例患者）植入的147个Co-Cr基和168个Au-Pt基PFM修复体的陶瓷缺陷。根据临床缺陷相关性，将检测到的缺陷分为三组。
结果
陶瓷缺陷率（Co-Cr基：12.9%；Au-Pt基：7.2%）虽无显著差异，但有较强的统计学趋势（U检验，P = 0.082）。大多数缺陷临床相关性较小。
结论
与Au-Pt基修复体相比，Co-Cr基PFM修复体出现陶瓷缺陷的风险可能更高。
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