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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.

Glossy smooth margins of a casting are due to_____________?

A Shrinkage of alloy on cooling

B Investment breakdown

C Incomplete wax elimination

D Incomplete gas elimination

Review Detailed Answer

Correct Answer: Incomplete wax elimination

Gypsum bonded investment should not be heated over______________?

A 700°C

B 1,300°C

C 1,063°C

D 900°C

Review Detailed Answer

Correct Answer: 700°C

Cobalt-Chrominum alloys contains_______________?

A 30% cobalt and 60% chrominum

B 60% cobalt and 30% chrominum

C 1% palladium

D 20% gold

Review Detailed Answer

Correct Answer: 60% cobalt and 30% chrominum

The most commonly used Titanium alloy for dental and medical purposes is________________?

A Ti 6Al 4V

B Ti 5Al 4V

C Ti 5Al 5V

D Ti 6Al 6V

Review Detailed Answer

Correct Answer: Ti 6Al 4V

Wax pattern is ideally invested immediately to decrease the dimensional changes caused by_______________?

A Decrease flow

B Continuous expansion

C Relaxation of the internal stresses

D Water loss

Review Detailed Answer

Correct Answer: Relaxation of the internal stresses

The maximum carbon content of steel used in dentistry is__________________?

A 19%

B 2%

C 1.7%

D 4%

Review Detailed Answer

Correct Answer: 1.7%

Flux is used during casting to________________?

A Remove the oxides formed on the gold alloy

B Lower the melting point

C Replace casting wax

D Speed the burnout process

Review Detailed Answer

Correct Answer: Remove the oxides formed on the gold alloy

Resistance to corrosion in a cobalt-chrome casting is due to presence of_______________?

A High quality iron

B Chrome

C Cobalt

D Nickel

Review Detailed Answer

Correct Answer: Chrome

Which is the use of boxing an impression______________?

A Ease of construction of denture

B Preserving the sulci

C Ease of pouring an impression

D All of the above

Review Detailed Answer

Correct Answer: Ease of pouring an impression

Gap between true end of casting ring and wax pattern should be______________?

A ¼ inch

B ½ inch

C 3/8 inch

D one inch

Review Detailed Answer

Correct Answer: ¼ inch

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Medical Science Mcqs 5254 MCQs [All-Courses]

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All Topics 5254

Glossy smooth margins of a casting are due to_____________?

Gypsum bonded investment should not be heated over______________?

Cobalt-Chrominum alloys contains_______________?

The most commonly used Titanium alloy for dental and medical purposes is________________?

Wax pattern is ideally invested immediately to decrease the dimensional changes caused by_______________?

The maximum carbon content of steel used in dentistry is__________________?

Flux is used during casting to________________?

Resistance to corrosion in a cobalt-chrome casting is due to presence of_______________?

Which is the use of boxing an impression______________?

Gap between true end of casting ring and wax pattern should be______________?