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.

In processing methyl methacrylate, the resin may show porosity if the flask is placed too soon porosity most likely occur_____________?

A Throughout the denture

B Near the borders

C In the thickest part

D On the denture surface

Review Detailed Answer

Correct Answer: In the thickest part

Composite resins in comparison to acrylic have_______________?

A Low compressive strength

B High abrasive resistance

C High water absorption

D High polymerization shrinkage

Review Detailed Answer

Correct Answer: High abrasive resistance

The chemical used to etch enamel is_______________?

A Zinc oxide

B Methyl methacrylate

C Phosphoric acid

D Eugenol

Review Detailed Answer

Correct Answer: Phosphoric acid

Which of the following procedure is indicated to produce cross-linking in the polymerization of linear chains of acrylic_______________?

A Addition of grain refining agents

B Addition of difunctional monomers

C Increasing the amount of heat required for linear polymerization

D Incorporation of terminating agents

Review Detailed Answer

Correct Answer: Addition of difunctional monomers

For photo-curing the composite resin the light source______________?

A Should be held at a millimeter distance from the restoration

B Need no protection while in use

C Will cure composite upto a depth of 5 millimeter thickness

D Is fiber optic

Review Detailed Answer

Correct Answer: Should be held at a millimeter distance from the restoration

In self-cure acrylic resin, activator is_____________?

A Toluidine

B Quaternary ammonium compound

C Benzoyl peroxide

D Tertiary amine

Review Detailed Answer

Correct Answer: Tertiary amine

Marginal leakage related to temperature change occurs to the greatest extent with_______________?

A Amalgam alloy

B Unfilled resin

C Composite resin

D Direct filling gold

Review Detailed Answer

Correct Answer: Unfilled resin

Acrylic resins were first introduced as a denture base material in______________?

A 1925

B 1937

C 1951

D 1956

Review Detailed Answer

Correct Answer: 1937

What is the disadvantage of using composites as restorative material ?

A Increased thermal conductivity

B Decreased wear resistance

C Decreased thermal conductivity

D None of the above

Review Detailed Answer

Correct Answer: Decreased wear resistance

The % of free monomer in a heat – cured acrylic resin is_______________?

A 3% to 5%

B 8% to 10%

C 0.2% to 0.5%

D 0.6% to 0.8%

Review Detailed Answer

Correct Answer: 0.2% to 0.5%

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Medical Science Mcqs 5254 MCQs [All-Courses]

All Topics 5254

All Topics 5254

In processing methyl methacrylate, the resin may show porosity if the flask is placed too soon porosity most likely occur_____________?

Composite resins in comparison to acrylic have_______________?

The chemical used to etch enamel is_______________?

Which of the following procedure is indicated to produce cross-linking in the polymerization of linear chains of acrylic_______________?

For photo-curing the composite resin the light source______________?

In self-cure acrylic resin, activator is_____________?

Marginal leakage related to temperature change occurs to the greatest extent with_______________?

Acrylic resins were first introduced as a denture base material in______________?

What is the disadvantage of using composites as restorative material ?

The % of free monomer in a heat – cured acrylic resin is_______________?