Amphiphilic copolymers have been paid much attention in recent years. Their structural features and applications in stabilizing metal colloids is reviewed in this paper.

Conclusions:The technique of repairing the porcelain fused to metal restoratives of unlocking porcelain directly in mouth by spot-electrolytic etching is practical.

The contents of colloidal trace metals were mainly influenced by the factors of COC content and total trace metals, but were all affected by the wind-wave disturbance action fundamentally.