Dental materials for preparation mcqs

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

a. High firing temperature
b. Disintegration of opaque layer
c. Presence of copper
d. Formation of excess oxides


ANSWER: See Answer
 
No explanation is available for this question!
 

    Discussion

Post your comment / Share knowledge