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

Related Mcqs:

1. Indium in metal alloys_______________?

   A. Improve bonding B. Harden the metal ceramic Ag-Pd alloy C. Both A and B D. None of the above...

2. Ideal requirement of metal ceramic casting____________?

   A. Low fusing ceramic and high fusing alloys B. Matching of coefficients of thermal expansion of ceramics and alloy C. Bonding between ceramic and alloy D. All of the above...

3. Gallium and indium added to Amalgam replace______________?

   A. Silver B. Tin C. Mercury D. Zinc...

4. Coefficient of thermal expansion of metal-ceramic alloys is________________?

   A. Same as porcelain B. More than porcelain C. Less than porcelain D. More than or equal to porcelain but not less...

5. The anatomic crown is shorter than the clinical crown of a tooth in which of the following instances___________________?

   A. Impaction B. Gingivitis C. Occlusal wear D. Gingival recession...

6. Porcelain binds to metal in PFM crown by_________________?

   A. Metallic bind B. Transparency C. Chemical bond D. B and C...

7. For porcelain fused to metal crown, the porcelain should have ______________?

   A. High fusion expansion B. High fusion temperature C. Linear coefficient of thermal expansion less than that of metal D. Linear coefficient of thermal expansion more than that of metal...

8. The castability of chromium-cobait base metal alloys when compared to gold based noble metal alloys is_______________?

   A. More B. Less C. Equal D. Depends on the alloy type...

9. Linear coefficient of thermal expansion of metal used for metal caramic restoration range from________________?

   A. 11.5-12.5×10-6/°C B. 10.5-11.5×10-6/°C C. 13.5-14.5×10-6/°C D. 16.5-17.5×10-6/°C...

10. By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate_______________?

    A. Ethyl alcohol B. Glycol C. Acetate D. Propanolol...