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.Management Sciences
Category: Dental Cements
The logical explanation for the unique anticariogenic property of most silicate cements is______________?
A. The reduction in enamel solubility due to fluoride uptake by enamel
B. That beryllium flux is used in silicates
C. That silicates show very little leakage at the margins of the restoration
D. Due to the high silica content
The setting of zinc phosphate is accelerated by_____________?
A. Adding a drop of water
B. Increasing mixing time
C. Cooling the slab
D. Adding a drop of oleic acid
The main components is sillicophosphate cement________________?
A. Zinc phosphate and GIC
B. Silicate and GIC
C. ZOE and Silicate
D. Zinc phosphate and SIlicate
Best marginal seal is provided by____________?
A. Zinc phosphate
B. Zinc oxide eugenol
C. Gutta-percha
D. Resin
The tow cements which hold with the tooth are_______________?
A. GIC and polycarboxylate
B. GIC and ZnPO4
C. ZnPO4 and silicate
D. GIC and silicate
Which of the following characterizes the silicate cement______________?
A. It is pulpal irritant
B. It is highly cariogenic
C. Chemically attaches to the tooth structure
D. It produces thinnest film surface
Which of the following cements is most irritant to pulpal tissues ?
A. Zinc phosphate
B. Silicate
C. Glass ionomer
D. Polycarboxylate
Minimum thickness for type I zinc phosphate cement should be_______________?
A. 15 microns
B. 25 microns
C. 50 microns
D. 100 microns
Glass ionomer cements are composed of______________?
A. Alumino silicate powder and phosphoric acid
B. Aluminosillicate powder and polyacrylate
C. Zinc oxide powder and phosphoric acid
D. Zinc oxide powder and polyacrylate liquid
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