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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.

All Topics  5254

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
Chronic mercury toxicity results from_____________?
A Ingestion while removing old amalgam
B Skin contact
C Mercury vapour
D All of the above
Correct Answer: All of the above
Increase in the residual mercury in silver amalgam filling can_____________?
A Cause fracture of the filling
B Tarnish and corrosion
C Increase the strength
D Decrease condensation pressure
Correct Answer: Cause fracture of the filling
Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?
A It has increased tensile and compressive strength
B It has poor tarnish and corrosion resistance
C It’s edge strength is greater
D Mercury content in the final restoration is less
Correct Answer: It has poor tarnish and corrosion resistance
Compare to conventional amalgams, spherical amalgams_______________?
A Require more mercury
B Require heavy compection forces
C Have longer setting times
D None of the above
Correct Answer: None of the above
Which of the following phases of dental amalgam has minimum strength____________?
A Gamma 1
B Gamma 2
C Epsilon 1
D Gamma 3
Correct Answer: Gamma 2
The ADA specification No 1 for composition of amalgam alloy recommends______________?
A 65% silver, 32% tin and 3% copper
B 49% silver, 32% tin and 19% cooper
C 65% silver, 29% tin and 5-6% copper
D None of the above
Correct Answer: 65% silver, 29% tin and 5-6% copper
The highest mercury concentration in amalgam filling is found_____________?
A At the margin of the restoration
B In the centre of the restoration
C In the deepest part of the restoration
D None of the above
Correct Answer: At the margin of the restoration
The term trituration means____________?
A Lysing amalgam alloy
B Mixing of amalgam alloy and mercury
C Removal of excess of mercury
D None of the above
Correct Answer: Mixing of amalgam alloy and mercury
The higher the Hg alloy ratio in dental amalgam________________?
A Higher the strength
B Lower the creep value
C More matrix matrial formed
D More gamma 1 phase formed
Correct Answer: More matrix matrial formed
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