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 A. 5 minutes
B. 6 minutes
C. 3 minutes
D. 15 minutes
Once triturated, the Dental amalgam should be condensed with in_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. y1
B. y2
C. B1
D. y
The solid solution of silver and mercury is called_______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. High strength
B. Sets quickly
C. Needs no squeezing of excess mercury
D. Greater plasticity and adapts well to cavity walls
Advantage of minimum mercury technique or Eames technique is all Except________________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Accelerated corrosion
B. Fracture of the restoration
C. Merginal damage
D. All of the above
A. Reduces contraction
B. Increases the strength of lathe cut alloy but reduces the strength of spherical alloy amalgam
C. Decreases creep
D. Gives al dull and crumbly amalgam
Over-trituration of silver alloy and mercury_______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Direct contact with the mercury
B. Inhalation of mercury vapours
C. Ingestion of mercury
D. None of the above
Mercury intoxication in dental office mainly results from____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. mg / m3
B. 0.05 mg / m3
C. mg / m3
D. mg / m3
The threshold limit value of mercury exposures is_______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Sulphides of silver
B. Oxides of tin
C. Chlorides of tin
D. All of the above
The tarnished layer of silver amalgam consists of________________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Silver / Mercury phase
B. Silver / Tin phase
C. Tin / Mercury phase
D. Zinc / Mercury phase
Which phase provides maximum strength in hardened mercury/silver alloy ? Read More »
Amalgams, Dental Materials, Medical Mcqs