Medical MCQs

A. It increases compresssive and tensile strengths
B. Decreased compressive, increased strength
C. Decreased compressive, decrease tensile strength
D. Increased compressive, increased tensile strength

A. Under trituration or over trituration of amalgam
B. Decreases with condensation pressure
C. Increase with condensation pressure
D. Cannot be predictable

A. Amalgam alloy
B. Trituration time
C. Speed of amalgamator
D. All of the above

A. 45-55%
B. 55-65%
C. 65-85%
D. More than 85%

A. Complexes with hemoglobinto form methemoglobin
B. Inhibits hemoglobin synthesis, producing anemia
C. Inhibits anaerobic glycolysis
D. Binds to sulfhydryl groups

A. 40 gpa and 60 – 100 mpa
B. 21 gpa and 27 – 55 mpa
C. 350 gpa and 10 – 120 mpa
D. 360 gpa and 125 – 130 mpa

A. Dry mix
B. Shiny mix
C. Short mixing time
D. None of the above

A. Requires least amount of mercury
B. Achieves lowest compressive strength at 1 hr.
C. Has tensile strength both at 15 min & 7 days comparable to high copper unicompositional alloy
D. Has low creep

A. Silver
B. Tin
C. Mercury
D. Zinc

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