Medical MCQs

5099 MCQs  (Page 100 of 510)

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
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 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 cements is most kind to pulp ?
A. Glass ionomer
B. Polycarboxylate
C. Silicate
D. Resin cement
Silicate cement is indicated in________________?
A. Mouth breathers
B. Patients with high caries index
C. In the restoration of posterior tooth
D. None of the above
The cement Which is least soluble in oral cavity______________?
A. Glass ionomer
B. Resin cement
C. Polycarboxylate cement
D. Silico-phosphate cement
Which cement is irritating to the pulp ?
A. Carboxylate cement
B. Zinc oxide-eugenol cement
C. Zinc phosphate
D. Ethoxybenzoic acid