Medical MCQs

5099 MCQs  (Page 106 of 510)

High copper amalgam can be produced_____________?
A. From smooth atomized particles
B. From irregular and spherical particles
C. From lathe cut particles
D. From traditional alloy particles
High strength amalgam is achieved by_____________?
A. Maximum matrix and minimum alloy phase
B. Minimum matrix and maximum alloy phase
C. Maximum matrix phase
D. Minimum alloy phase
Which of the following does not occur in High Copper Amalgam ?
A. Electrochemical corrosion
B. Chemical corrosion
C. Penetrating corrosion
D. Corrosion does not occur at all
Advantage of zinc containing amalgam is_______________?
A. Better handling property
B. Dimensional stability
C. Resistance to creep
D. Toxicity to pulp and dentin
What is the working time of amalgam?
A. One to two minutes
B. Three to four minutes
C. Five to six minutes
D. Seven to eight minutes