Category: Amalgams

A. Improper amalgam filling
B. Pulp exposure
C. Galvanism
D. None of the above

A. Marginal breakdown
B. Shrinkage
C. Delayed expansion
D. increased stresses

A. Require more mercury
B. Require heavy compection forces
C. Have longer setting times
D. None of the above

A. y1
B. y2
C. B1
D. y

A. Cause fracture of the filling
B. Tarnish and corrosion
C. Increase the strength
D. Decrease condensation pressure

A. High strength
B. Sets quickly
C. Needs no squeezing of excess mercury
D. Greater plasticity and adapts well to cavity walls

A. Better handling property
B. Dimensional Stability
C. Resistance to creep
D. Toxicity to pulp and dentin

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