A. Methyl and ethyl mercury
B. Mercury vapour
C. Inorganic mercury forms
D. Mercury sulphide
The most toxic form of mercury is_________________? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. Heat pressing
B. Machining
C. Sintering
D. Slip casting
Ceramics fired to metals are processed by_______________? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. high fusion expansion
B. high fusion temperature
C. linear coefficient of thermal expansion less than but close to that of metal
D. Linear coefficient of thermal expansion greater than, but close to that of the metal
When porcelain is basked against metal, it should possess a________________? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. Blinding
B. Buffing
C. Dressing
D. Truing
A. QTH
B. PAC
C. LED
D. Argon lasers
Which of the following releases single wavelength of energy ? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. 1056
B. 1560
C. 1668
D. 1886
The melting point of titanium is __________ degree celsius? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. Ionic copper
B. Copper cyanide
C. Silver cyanide
D. Acidic copper sulphate
Electrolyte used for plating copper dies is________________? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. Vaporization of silver from the walls of contaminated furnaces
B. Surface diffusion of silver from the marginal metal
C. More rapid silver diffusion in sodium containing glass
D. Silver ionization by porcelains with high oxygen potential
A. High ductility
B. High hardness
C. Low esthetic value
D. Susceptibility to brittle fracture
Compared with dental alloys, CERAMICS show____________________? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs A. Exchange of aluminium and sodium ions
B. Exchange of aluminium and potassium ions
C. Exchange of sodium and potassium ions
D. None of the above
Chemical method of strengthening porcelain involves_________________? Read More »
Dental Ceramics & Miscellaneous, Dental Materials, Medical Mcqs