Dental Materials

A. Produce a smoother casting
B. Decrease setting expansion
C. Increase setting expansion
D. Increase thermal expansion

A. Tempering
B. Work hardening
C. Age hardening
D. Precipitation hardening

A. Is accomplished by soaking the casting in baking soda
B. Causes porosity in gold
C. Removes surface oxides from gold castings
D. Remove investment from gold casting

A. Shape memory
B. Hyper rigidity
C. Corrosion resistance
D. Weldable properties

A. Martensite
B. Ferrite
C. Austenite
D. Pearlite

A. Carbon content
B. Silica content
C. Gypsum
D. Copper

A. Low fusing ceramic and high fusing alloys
B. Matching of coefficients of thermal expansion of ceramics and alloy
C. Bonding between ceramic and alloy
D. All of the above

A. Inlay wax type-II
B. Boxing wax
C. Modelling wax
D. Casting wax

A. 0.4%
B. 1.4%
C. 2.4%
D. 3.4%

A. Increases its toughness
B. Increases hardness
C. Increase ductility
D. decreases its toughness