Category: Amalgams

A. A metallic powder composed of silver, tin, copper and zinc
B. An alloy of two or more metals one of which is mercury
C. An alloy of two or more metals that have been dissolved in each other in the molten state
D. A metallic substances in powder or tablet from that is mixed with mercury

A. Ingestion while removing old amalgam
B. Skin contact
C. Mercury vapour
D. All of the above

A. Remove oxides from powder particle surface
B. Keep the amount of gamma-1 or gamma-2 matrix crystals to maximum
C. Pulverize pelletes into particles to aid in attack by mercury
D. Achieve a workable mass of amalgam in minimum time

A. It has increased tensile and compressive strength
B. It has poor tarnish and corrosion resistance
C. It’s edge strength is greater
D. Mercury content in the final restoration is less

A. Low copper amalgam alloy
B. Admix alloy
C. Single composition alloys
D. Creep value of all the above mentioned alloys is same

A. From smooth atomized particles
B. From irregular and spherical particles
C. From lathe cut particles
D. From traditional alloy particles

A. 80 Mpa
B. 140 Mpa
C. 260 Mpa
D. 510 Mpa

A. Accelerated corrosion
B. Fracture of the restoration
C. Merginal damage
D. All of the above

A. Compressive strength
B. Tensile strength
C. Corrosion
D. Creep

A. Compressive stress
B. Impact stress
C. Shear stress
D. Tensile stress