Medical MCQs Medical Mcqs
Q In a metal ceramic crown for a FPD the function of tin, indium which are readily oxidized minor constituents is to________________?
  • A A. Improve bonding
  • B B. Decrease porosity
  • C C. They react with the porcelain opaque layer, which masks the metal
  • D D. Improves the thermal expansion between the metal and porcelain
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