A. Low copper amalgam alloy
B. Admix alloy
C. Single composition alloys
D. Creep value of all the above mentioned alloys is same
Creep value of which of the following is the highest ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. hours
B. 4 hours
C. 8 hours
D. 16 hours
Amalgam achieves 70% of the strength by____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Complexes with hemoglobinto form methemoglobin
B. Inhibits hemoglobin synthesis, producing anemia
C. Inhibits anaerobic glycolysis
D. Binds to sulfhydryl groups
Mercury is toxic because it_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. 45-55%
B. 55-65%
C. 65-85%
D. More than 85%
What fraction of inhaled mercury vapors retained in the body ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Amalgam alloy
B. Trituration time
C. Speed of amalgamator
D. All of the above
A. Under trituration or over trituration of amalgam
B. Decreases with condensation pressure
C. Increase with condensation pressure
D. Cannot be predictable
Decrease in creep occurs in_______________? Read More »
Amalgams, Dental Materials, 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
Cavo surface angle for amalgam resoration is butt joint as____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Low compressive strength
B. High marginal breakdown
C. Less marginal #
D. High creep
Which of the following are characteristic feature of high copper amalgam alloy ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. 6.6 a (ppm k-1)
B. 11.4 a (ppm k-1)
C. 14.0 a (ppm k-1)
D. 25.0 a (ppm k-1)
Co-efficient of Thermal exansion of amalgam is______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Improper amalgam filling
B. Pulp exposure
C. Galvanism
D. None of the above
