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 malleting force is directed______________?

A Perpendicular to the walls

B Parallel to long axis of crown

C 45° to the wall

D None of the above

Review Detailed Answer

Correct Answer: 45° to the wall

Pitting of direct filling old restoration usually results from_________________?

A Using contaminated gold foil

B Poor finished preparation

C Improper stepping of condenser point

D Using small condenser point

Review Detailed Answer

Correct Answer: Improper stepping of condenser point

The cohesive gold used as bulk filler is_____________?

A Electra alloy

B Mat gold

C Spherical gold

D Gold foll

Review Detailed Answer

Correct Answer: Mat gold

Chemical tempering in porcelains is done to interrupt crack propagation by______________?

A Transformation toughening

B Dispersion of crystalline phase

C Inducing residual compressive strength

D All of the above

Review Detailed Answer

Correct Answer: Inducing residual compressive strength

To prevent porosity in dental porcelain it should be backed________________?

A Boric oxide

B In vacuum

C For long period

D Under pressure

Review Detailed Answer

Correct Answer: In vacuum

Pyroplastic flow of porcelain is due to___________________?

A High temperature during glazing

B Low temperature during glazing

C Improper condensation

D High firing temperature

Review Detailed Answer

Correct Answer: High temperature during glazing

Condensation shrinkage of porcelain during firing depends on__________________?

A Rate of arriving at firing temperature

B Uniformity of particle size

C Shape and size of particle

D Type of investment used

Review Detailed Answer

Correct Answer: Shape and size of particle

Porcelain is best fired__________________?

A In open air

B Under air compression

C When several layer are fired simultaneously

D Under minimum pressure

Review Detailed Answer

Correct Answer: Under air compression

Porosity in porcelain can be prevented by_______________?

A Thoroughness of condensation

B Rapidity of firing

C High firing temperature

D All of the above

Review Detailed Answer

Correct Answer: Thoroughness of condensation

Which of the following is the main constituent of porcelain__________________?

A Feldspar

B Kaolin

C Quartz

D Clay

Review Detailed Answer

Correct Answer: Feldspar

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

The malleting force is directed______________?

Pitting of direct filling old restoration usually results from_________________?

The cohesive gold used as bulk filler is_____________?

Chemical tempering in porcelains is done to interrupt crack propagation by______________?

To prevent porosity in dental porcelain it should be backed________________?

Pyroplastic flow of porcelain is due to___________________?

Condensation shrinkage of porcelain during firing depends on__________________?

Porcelain is best fired__________________?

Porosity in porcelain can be prevented by_______________?

Which of the following is the main constituent of porcelain__________________?