A. Animal
B. Mineral
C. Insect
D. Vegetable
A. Utility wax
B. Base plate wax
C. Beading wax
D. Boxing wax
A. hole porosity
B. Gas inclusion porosity
C. Micro porosity
D. Subsurface porosity
A. To provide a smooth and glossy surface
B. Increase toughness
C. Decrease toughness
D. Decrease flow at room temperature
A. Platinum
B. Copper
C. Silver
D. Gold
A. Tensile strength
B. Proportional limit
C. Ductility
D. Hardness
A. Form an opening of molten metal to enter the mold
B. Help polish cast restorations
C. Eliminate air bubbles on the wax pattern
D. Reproduce fine detail
A. Carbon
B. Chromium
C. Nickel
D. Titanium
A. 100 Mpa
B. 240 Mpa
C. 560 Mpa
D. 700 Mpa
A. Dimensional change
B. Thermal conductivity
C. Warpage
D. Tarnish and corrosion