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.Management Sciences
Category: Direct Filling Gold
The pure form of gold used in dentistry is known as___________________?
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A. Cohesive gold
B. Non cohesive gold
C. Class I casting gold
D. Class IV casting gold
Which of the following is true about direct filling gold______________?
A. Properly condensed mat gold has no voids
B. Whatever may be the type voids are inherent
C. Voids can be avoided with manual condensation
D. None of the above
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
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