When Gold fused with porcelain is fired at very high temperature greenish discoloration of cervical margin is due to________________?

Related Mcqs:

The carat for Au foil used for restorations is_______________?

A. 18 B. 20 C. 22 D. 24...

Electralloy is an alloy of________________?

A. Gold and Platinum B. Cobalt and Chromium C. Gold and Calcium D. Tin and chromium...

Average particle size of powdered gold is________________?

A. 10 um B. 15 um C. 30 um D. 0.1 um...

Cohesion of gold foil is an example of______________?

A. Atomic attraction and welding B. Annealing C. Wedging D. Adaptation...

The material used in its pure form in dentistry is______________?

A. Composite B. Silver C. Gold D. Amalgam...