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Medical Science Mcqs 5254 MCQs [All-Courses]

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

The dental amalgam is most resistant to________________?

A Compressive stress

B Impact stress

C Shear stress

D Tensile stress

Review Detailed Answer

Correct Answer: Compressive stress

According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be________________?

A 80 Mpa

B 140 Mpa

C 260 Mpa

D 510 Mpa

Review Detailed Answer

Correct Answer: 80 Mpa

Admixed high copper alloy powder contains_________________?

A 9-20% copper

B 13-20% copper

C 9-30% copper

D 13-30% copper

Review Detailed Answer

Correct Answer: 9-20% copper

Finishing and polishing of Amalgam make the restoration______________?

A Increase in tarnish and corrosion resistance

B Increase the marginal strength

C Decrease the tarnish and corrosion resistance

D Increased compressive strength

Review Detailed Answer

Correct Answer: Increase in tarnish and corrosion resistance

Setting time of Amalgam is best controlled by _______________?

A Using spherical particles

B Lathe cut alloy

C Altering Hg-Alloy ratio

D Trituration time

Review Detailed Answer

Correct Answer: Trituration time

In non zinc containing dental amalgam alloy the percentage of zinc present is______________?

A Less than 0.02%

B Less than 0.1%

C Less than 0.01%

D None of the above

Review Detailed Answer

Correct Answer: Less than 0.01%

High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?

A Have less marginal breakdown

B Are workable at lower Hg-alloy ratio

C Have a higher ratio of tensile to compressive strength

D Have less resistance to tarnish and corrosion

Review Detailed Answer

Correct Answer: Have less marginal breakdown

The largest component of amalgam alloy is_____________?

A Silver

B Tin

C Zinc

D Copper

Review Detailed Answer

Correct Answer: Silver

During amalgamation, trituration is done to_____________?

A Dissolve the alloy in mercury

B Coat the alloy particle with mercury

C Remove excess mercury from the amalgam

D Dissolve Hg in alloy

Review Detailed Answer

Correct Answer: Coat the alloy particle with mercury

Amalgam restorations give the best clinical service when the residual mercury content is_______________?

A 38-42%

B 48-52%

C 58-62%

D 68-72%

Review Detailed Answer

Correct Answer: 48-52%

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

The dental amalgam is most resistant to________________?

According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be________________?

Admixed high copper alloy powder contains_________________?

Finishing and polishing of Amalgam make the restoration______________?

Setting time of Amalgam is best controlled by _______________?

In non zinc containing dental amalgam alloy the percentage of zinc present is______________?

High copper dental amalgams are superior to other amalgams because high copper dental amalgems______________?

The largest component of amalgam alloy is_____________?

During amalgamation, trituration is done to_____________?

Amalgam restorations give the best clinical service when the residual mercury content is_______________?