Methods 750 metal-porcelain prostheses in 720 clinical cases such as dentition defect missing,discoloration,abnormity and allotopia etc have been investigated and analysed during 6 years.

• 方法:对临床6年期间用金属烤瓷方法修复的各种牙齿缺损、缺失、变色、畸形、错位等共720名患者计750件修复体的临床观察。