M C Q s D r i v e

Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

What is the most frequently used restorative material ?
A Silicate
B Amalgam
C Composite
D Gold
Correct Answer: Amalgam
How soon after a moisture contamination does a zinc containing amalgam alloy start expanding________________?
A 24 hours
B 1-2 days
C 3-5 days
D 7 days
Correct Answer: 3-5 days
The percentage of copper in high copper alloy is______________?
A 10-12%
B 0-6%
C 13-30%
D 20-30%
Correct Answer: 13-30%
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
Correct Answer: Three to four minutes
Advantage of zinc containing amalgam is_______________?
A Better handling property
B Dimensional Stability
C Resistance to creep
D Toxicity to pulp and dentin
Correct Answer: Better handling property
Discolouration of silver alloy is due to_____________?
A Tarnish
B Tarnish and corrosion
C Wet corrosion
D Dry corrosion
Correct Answer: Tarnish
Moisture contamination of amalgam can lead to_____________?
A Marginal breakdown
B Shrinkage
C Delayed expansion
D increased stresses
Correct Answer: Delayed expansion
In a high copper amalgam the phase, which is eliminated is_______________?
A Gamma 1
B Gamma 2
C Gamma 1 and 2
D No phase is eliminated
Correct Answer: Gamma 2
Well premeasured capsules of amalgam can release mercury vapour during_______________?
A Mulling
B Carving
C Condensation
D Trituration
Correct Answer: Condensation
In spherical alloys as compared to lathe cut____________?
A Less condensing force is required
B More condensing force is required
C Both require same condensing force
D Manipulation is easy
Correct Answer: Less condensing force is required