金属烤瓷联合冠（又称烤瓷牙）是瓷牙修复的种类之一。因其色泽、形态美观自然；质地坚实耐用，能很好地恢复咀嚼功能而深受广大缺牙患者的欢迎。但其修复无论从临床设计备牙或技工制作要求都相当高，其中任何一个步骤处理不当均可造成义齿修复缺陷或失败。由于这项工作在广西 Metallic porcelain crown (also known as porcelain teeth) is one of the types of porcelain teeth repair. Because of its color, shape beautiful natural; solid and durable texture, can well restore the chewing function and welcomed by the majority of edentulous patients. However, the repair of the preparation of teeth from both the clinical design or mechanics are quite high, any one of these steps can result in improper denture repair defects or failures. Because of this work in Guangxi