贵金属烤瓷冠的金属-瓷修复失败：私人诊所一项前瞻性临床试验的7年结果
Metal-ceramic failure in noble metal crowns: 7-year results of a prospective clinical trial in private practices.
作者信息
Reitemeier Bernd, Hänsel Kristina, Kastner Christian, Walter Michael H
机构信息
Department of Prosthetic Dentistry, School of Dentistry, Dresden University of Technology, Dresden, Germany.
出版信息
Int J Prosthodont. 2006 Jul-Aug;19(4):397-9.
PURPOSE
The aim of this study was to evaluate the clinical performance of metal-ceramic crowns placed in 10 private practices.
MATERIALS AND METHODS
In this prospective clinical trial, 95 patients were provided with 190 noble-metal metal-ceramic single crowns.
RESULTS
The 7-year survival rates of the crowns were 95.5% (target event: any removal), 99.5% (target event: removal because of defective veneer), and 92.4% (target event: metal-ceramic complication of any kind). No significant explanatory variables for metal-ceramic complications could be detected by bivariate and multivariate testing. The consequences resulting from metal-ceramic defects were of minor clinical significance in most cases.
CONCLUSION
The findings support previous claims that metal-ceramic restorations perform very well clinically, including in practices outside academic environments.
目的
本研究的目的是评估在10家私人诊所中放置的金属烤瓷冠的临床性能。
材料与方法
在这项前瞻性临床试验中，为95名患者提供了190颗贵金属金属烤瓷单冠。
结果
这些冠的7年生存率分别为95.5%（目标事件：任何移除情况）、99.5%（目标事件：因饰面缺陷而移除）和92.4%（目标事件：任何类型的金属烤瓷并发症）。通过双变量和多变量测试未检测到金属烤瓷并发症的显著解释变量。在大多数情况下，金属烤瓷缺陷导致的后果在临床上意义不大。
结论
这些发现支持了先前的说法，即金属烤瓷修复体在临床上表现良好，包括在学术环境之外的诊所。
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