A. Transformation toughening
B. Dispersion of crystalline phase
C. Inducing residual compressive strength
D. All of the above
Related Mcqs:
- Greening occuring when porcelains are fired on silver free alloys may be attributed to________________?
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 - Dental porcelains are crystalline materials of________________?
A. Rubber
B. Plastic
C. Organic substances
D. Glass - Tempering of steel cause________________?
A. Increases its toughness
B. Increases hardness
C. Increase ductility
D. decreases its toughness - Wash or corrective impression is done by______________?
A. Impression plaster
B. Impression paste
C. Alginate
D. Rubber base impression material - Cleaning of base metal alloy is done by______________?
A. Warm HCI
B. Cold HF
C. Cold H2SO4
D. Sand blasting with aluminium oxide - Sterilization of liquid paraffin is done by______________?
A. Autoclaving
B. Hot air oven
C. UV-Radiation
D. Inspissation - Serological study for prevalence of Hepatitis B is best done by______________?
A. Surface antigen
B. Surface antibody
C. Core antigen
D. Core antibody - The first porcelain tooth material was introduced by______________?
A. DeChemant
B. Ash
C. Plateau
D. McClean - Hypersensitivity reactions like contact dermatitis can be caused by______________?
A. polysulfides
B. Condensation silicones
C. addition silicones
D. Polyether - Polymerisation of heat-cured methyl methacrylate is initiated by______________?
A. Tertiary amine
B. Benzoyl peroxide free radical
C. Hydroquinone
D. Methyl ether
