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Dental Materials

Advantage of zinc phosphate over GIC is______________?

August 1, 2021July 23, 2019 by admin
Advantage of zinc phosphate over GIC is______________?

A. High compressive strength
B. Tensile strength
C. High modulus of elasticity
D. Diametral strength

Categories Dental Cements, Dental Materials, Medical Mcqs

Cavity varnishes have_____________?

August 1, 2021July 23, 2019 by admin
Cavity varnishes have_____________?

A. Average bonding to tooth
B. Low bonding to tooth
C. Excellent bonding to tooth
D. No bonding to tooth

Categories Dental Cements, Dental Materials, Medical Mcqs

Which one of the following dental cements does not contain water as part of the composition of the liquid component ?

August 1, 2021July 23, 2019 by admin
Which one of the following dental cements does not contain water as part of the composition of the liquid component ?

A. Zinc Phosphate cement
B. Zinc oxide equgenol cement
C. Zinc silicophosphate cement
D. Zinc polycarboxylate cement

Categories Dental Cements, Dental Materials, Medical Mcqs

Which one of the following restorative materials is having coefficient of thermal expansion close to that of tooth enamel and dentin ?

August 1, 2021July 23, 2019 by admin
Which one of the following restorative materials is having coefficient of thermal expansion close to that of tooth enamel and dentin ?

A. Microfilled composite resins
B. Pure gold
C. Silver amalgam
D. Type II Glass ionomer cement

Categories Dental Cements, Dental Materials, Medical Mcqs

Mode of failure during dislodgement of prosthesis cemented with zinc poly carboxylate cement is usually seen at the_____________?

August 1, 2021July 23, 2019 by admin
Mode of failure during dislodgement of prosthesis cemented with zinc poly carboxylate cement is usually seen at the_____________?

A. Cement tooth interface
B. Cement prosthesis interface
C. Cleavage through the cement layer
D. Fracture of tooth or prosthesis

Categories Dental Cements, Dental Materials, Medical Mcqs

The setting time of ZnPO4 cement can be retarded by_____________?

August 1, 2021July 23, 2019 by admin
The setting time of ZnPO4 cement can be retarded by_____________?

A. mixing more powder to the liquid
B. mixing powder to liquid, checked by water
C. slower addition of powder to liquid
D. faster addition of powder to liquid

Categories Dental Cements, Dental Materials, Medical Mcqs

MEchanism of adhesion of GIC restoration with tooth surface is by mean of ______________?

August 1, 2021July 23, 2019 by admin
MEchanism of adhesion of GIC restoration with tooth surface is by mean of ______________?

A. Carboxyl group
B. Chelates with Metal Ions
C. C=C double bond
D. Polymer chains

Categories Dental Cements, Dental Materials, Medical Mcqs

In non-eugenol pastes the constituents are mixed in______________?

August 1, 2021July 23, 2019 by admin
In non-eugenol pastes the constituents are mixed in______________?

A. Phosphoric Acid
B. Ethyl alcohol
C. Benzoic acid
D. None of the above

Categories Dental Cements, Dental Materials, Medical Mcqs

Ethoxy benzoic acid increases the strength and solubility of the cement______________?

August 1, 2021July 23, 2019 by admin
Ethoxy benzoic acid increases the strength and solubility of the cement______________?

A. Zinc oxide eugenol
B. Polycarboxylate cement
C. Zinc phosphate cement
D. Silicate cement

Categories Dental Cements, Dental Materials, Medical Mcqs

Which cement base has the highest modulus of elasticity ?

August 1, 2021July 23, 2019 by admin
Which cement base has the highest modulus of elasticity ?

A. Zinc polycarboxylate
B. Polymer reinforced ZOE cement
C. Zinc phosphate
D. Glass inomer cement

Categories Dental Cements, Dental Materials, Medical Mcqs
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