A. 10 um
B. 15 um
C. 30 um
D. 0.1 um
Average particle size of powdered gold is________________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs A. Cohesive gold
B. Non cohesive gold
C. Class I casting gold
D. Class IV casting gold
The pure form of gold used in dentistry is known as___________________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs A. Gold and Platinum
B. Cobalt and Chromium
C. Gold and Calcium
D. Tin and chromium
Electralloy is an alloy of________________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs A. 18
B. 20
C. 22
D. 24
The carat for Au foil used for restorations is_______________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs A. Crystalline
B. Granular gold
C. Mat gold
D. Sponge gold
A. High firing temperature
B. Disintegration of opaque layer
C. Presence of copper
D. Formation of excess oxides
A. Made by a combination of chemical precipitation and atomization
B. Made by electrolytic precipitation
C. Made by beating pure gold at high temperatures
D. Made by milling pure gold ingots
Powdered gold is___________________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs 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
Which of the following is true about direct filling gold______________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs A. Perpendicular to the walls
B. Parallel to long axis of crown
C. 45° to the wall
D. None of the above
The malleting force is directed______________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs A. Using contaminated gold foil
B. Poor finished preparation
C. Improper stepg of condenser point
D. Using small condenser point
Pitting of direct filling old restoration usually results from_________________? Read More »
Dental Materials, Direct Filling Gold, Medical Mcqs