Dental Materials MCQs

Page No. 10

The main components is sillicophosphate cement________________?


aZinc phosphate and GIC

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bSilicate and GIC

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cZOE and SIlicate

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dZinc phosphate and SIlicate

✓



Percentage of zinc in ZOE cement is__________________?


a60%

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b70%

✓


c80%

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d90%

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View Answer 70%

Which of the following cements is contraindicated in mouth breathers_______________?


aSilicate

✓


bASPA

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cZinc phosphate

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dPolycarboxylate

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View Answer Silicate

The principle application of zinc phosphate cement is_____________?


aIn final cementation

✓


bAs temporary cementation

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cAs a temporary filling material

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dIt has less occlusal wear

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View Answer In final cementation

Which of the following cements have anti cariogenic properly________________?


aZOE

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bZinc phosphate

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cZinc silicophosphate

✓


dCalcium Hydroxide

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View Answer Zinc silicophosphate

Which of the following characterizes the silicate cement______________?


aIt is pulpal irritant

✓


bIt is highly cariogenic

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cChemically attaches to the tooth structure

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dIt produces thinnest film surface

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View Answer It is pulpal irritant

Which of the following cements bonds to tooth structure, which has an anticariogenic effect, has a degree of translucency and does not irritate the pulp ?


aPolycarboxylate cement

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bResin cement

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cSilicate cement

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dGlass ionomer cement

✓


View Answer Glass ionomer cement

All of the following are true for traditional solution liner, except_________________?


aIt is not necessary in moderately deep cavities under glass ionomer restoration

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bHave Film thickness of 1 – 50 microns

✓


cDo not provide thermal or electric insulation

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dProtect the pulp from reaction products leaching out of restoration

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The average life of silicate cement restoration is______________?


a2 years

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b4 years

✓


c6 years

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d8 years

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View Answer 4 years

The cavity varnish applied reduces post operative sensitivity in amalgam restoration by____________?


aDecreasing conduction of heat to pulp

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bMinimize marginal leakage around restoration

✓


cBy altering the chemical composition of restoration materials

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dBy preventing penetration of corrosion products into the dentinal tubules

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