Porcelain is best fired__________________?

Related Mcqs:

1. 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...

2. Porcelain denture teeth________________?

   A. Have a higher coefficient of thermal expansion than acrylic teeth: B. Have a lower abrasion resistance than enamel C. Should be used where the inter dental clearance is small D. Have a higher abrasion resistance than gold...

3. Porosity in porcelain at condensation stage depends on_________________?

   A. Shape and size of particle B. Uniform distribution of particle size C. Number of particles D. None of the above...

4. Quartz is Dental porcelain is______________?

   A. Strengthener B. Binder C. Pigment D. Crack minimzer...

5. Which of the following bur is used in the preparation of cavity restored with porcelain fused to metal ?

   A. Carbide bur B. Diamond bur C. Stainless steel bur D. Diamond but for porcelain and carbide bur for metal...

6. The first porcelain tooth material was introduced by______________?

   A. DeChemant B. Ash C. Plateau D. McClean...

7. Stage recognized in the firing of dental porcelain given below. Which of state is not correct ?

   A. Cold stage bisque B. Low bisque C. Medium bisque D. High bisque...

8. Porosity in porcelain can be prevented by_______________?

   A. Thoroughness of condensation B. Rapidity of firing C. High firing temperature D. All of the above...

9. Condensation shrinkage of porcelain during firing depends on__________________?

   A. Rate of arriving at firing temperature B. Uniformity of particle size C. Shape and size of particle D. Type of investment used...

10. Pyroplastic flow of porcelain is due to___________________?

    A. High temperature during glazing B. Low temperature during glazing C. Improper condensation D. High firing temperature...