Medical Mcqs

In a metal ceramic crown for a FPD the function of tin, indium which are readily oxidized minor constituents is to________________?

(A)  Improve bonding

(B)  Decrease porosity

(C)  They react with the porcelain opaque layer, which masks the metal

(D)  Improves the thermal expansion between the metal and porcelain

Submitted By :Ali Uppal

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