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Dentures over time will become color?

　　According to internationally renowned expert Professor Cui Rongshuo oral introduction denture is also known as dentures. Denture use for a long time will change. The reason multi-tone color of denture material aging or excessive pigment deposition in the denture surface, therefore making the denture discoloration. Generally speaking, high surface finish of the dentures, the price and easy manual cleaning is not easy to change color pigment deposition is not easy.

原文翻譯如下：