A. Compressive strength
B. Tensile strength
C. Corrosion
D. Creep
A. Lungs
B. Gastro-intestinal Track
C. Skin
D. Kidneys
Absorption of mercury in the human body occurs least from_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. From smooth atomized particles
B. From irregular and spherical particles
C. From lathe cut particles
D. From traditional alloy particles
High copper amalgam can be produced_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs 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
Which one of the following is not an objective of trituration ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Silver
B. Tin
C. Mercury
D. Zinc
Gallium and indium added to Amalgam replace______________? Read More »
Amalgams, Dental Materials, Medical Mcqs 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
Which is true regarding lathe cut silver alloy_______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Dry Mix
B. Shiny Mix
C. Short Mixing Time
D. None of the above
Adequate mixing of mercury is indicated by_______________? Read More »
Amalgams, Dental Materials, Medical Mcqs 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
For dental amalgam, the elastic modulus and tensile strength is______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Electrochemical Corrosion
B. Chemical Corrosion
C. Penetrating Corrosion
D. Corrosion does not occur at all
Which of the following does not occur in High Copper Amalgam ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Maximum matrix and minimum alloy phase
B. Minimum matrix and maximum alloy phase
C. Maximum matrix phase
D. Minimum alloy phase
High strength amalgam is achieved by_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs