A. 38-42%
B. 48-52%
C. 58-62%
D. 68-72%
A. 30-35%
B. 26-28%
C. 13-32%
D. 22-30%
Percentage of tin in low copper alloy is______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Zinc and water
B. Water
C. Hydrogen
D. Nascent oxygen
Cause of expansion in zinc containing amalgam is_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. More compressive strength but less tensile strength
B. More compressive strength and tensile strength
C. Less compressive strength but more tensile strength
D. Less compressive strength and tensile strength
What is common in amalgam and ceramics ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Copper
B. Zinc
C. Silver
D. Tin
Which of the following constituents of amalgam alloy decreases expansion____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Higher the strength
B. Lower the creep value
C. More matrix matrial formed
D. More gamma 1 phase formed
The higher the Hg alloy ratio in dental amalgam________________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. The resultant alloy is greater
B. The resultant alloy is lesser
C. The resultant alloy varies according to the content of Ag of Cu
D. None of the above
Ag-Cu eutectic alloy has a characteristic Property of that fusion temp of_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. 35 pounds
B. 3 pounds
C. 15 lb
D. 25 lb
What is the recommended for condensation of dental amalgam ? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Low tensile and compressive strength
B. Low Hg: Alloy ratio
C. High tensile strength
D. Low creep
Which is not true about high copper amalgam alloys______________? Read More »
Amalgams, Dental Materials, Medical Mcqs 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
Amalgam means_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs