The advantages and disadvantages of porcelain bridge restoration are: 1. Advantages: the first through the adhesive bonded to the teeth, not easy to fall off. Patient oral foreign body feeling small. Second easy to clean, normal brushing can be, assisted by dental floss. Third porcelain bridge simulation is high, can be restored to the original shape of the teeth. Fourth cost of the public; 2, disadvantages: the first porcelain bridge may fall off. Second porcelain teeth inside the metal, long-term in the oral saliva infiltration of metal may leak out, the gums dyed black. The third porcelain tooth surface of the porcelain powder may peel off.