金瓷修复体兼有金属的强度和烤瓷的美观 ,是牙体及牙列缺损最理想的修复体之一。在金瓷修复的广泛开展中也出现一些问题 ,其中瓷层失败已成为金瓷修复失败的主要原因之一 ,约占总失败率的5 3% [1] ,如何避免瓷层失败 ,延长金瓷修复体的使用寿命 ,有必要进一步深入研究。本文针 Gold porcelain restoration both the strength of the metal and the beauty of porcelain, dental and dentition defect is one of the best restoration. Some problems have also appeared in the extensive restoration of gold-porcelain restoration. The failure of porcelain layer has become one of the main reasons for the failure of porcelain restoration, accounting for 53% of the total failure rate [1]. How to avoid the failure of porcelain layer, Porcelain restoration of the service life, it is necessary to further study. This article needle