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PFM Pt-Ag

 

 

    Noble PFM, exclude Ni and Be which metal isn’t good for health.Pd-Ag alloy has some ductility and plasticity.At the same time, silver has the effect of sterilisierung,it has more beneficial for the gum than Non Noble PFM. But the metal is easily oxidized and discolored, the porcelain layer of neck will be slightly yellow.