Dental Materials MCQs

Page No. 10

The main components is sillicophosphate cement________________?


aZinc phosphate and GIC


bSilicate and GIC


cZOE and SIlicate


dZinc phosphate and SIlicate



Percentage of zinc in ZOE cement is__________________?


a60%


b70%


c80%


d90%


View Answer 70%

Which of the following cements is contraindicated in mouth breathers_______________?


aSilicate


bASPA


cZinc phosphate


dPolycarboxylate


View Answer Silicate

The principle application of zinc phosphate cement is_____________?


aIn final cementation


bAs temporary cementation


cAs a temporary filling material


dIt has less occlusal wear


View Answer In final cementation

Which of the following cements have anti cariogenic properly________________?


aZOE


bZinc phosphate


cZinc silicophosphate


dCalcium Hydroxide


View Answer Zinc silicophosphate

Which of the following characterizes the silicate cement______________?


aIt is pulpal irritant


bIt is highly cariogenic


cChemically attaches to the tooth structure


dIt produces thinnest film surface


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


bResin cement


cSilicate cement


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


bHave Film thickness of 1 – 50 microns


cDo not provide thermal or electric insulation


dProtect the pulp from reaction products leaching out of restoration



The average life of silicate cement restoration is______________?


a2 years


b4 years


c6 years


d8 years


View Answer 4 years

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


aDecreasing conduction of heat to pulp


bMinimize marginal leakage around restoration


cBy altering the chemical composition of restoration materials


dBy preventing penetration of corrosion products into the dentinal tubules



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