Methods: for long alloy bridge, the pontic was made with cavity, which was filled with plastic. 28 cases (9 anterior and 19 posterior) were treated by the bridges with improved pontics.

• 方法:对修复体金属支架体积偏大而厚的桥体采用将金属部分作成中空部分用瓷粉填塞的方法制作。