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.Management Sciences
Category: Dental Cements
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
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 cavity varnish applied reduces post operative sensitivity in amalgam restoration by____________?
A. Decreasing conduction of heat to pulp
B. Minimize marginal leakage around restoration
C. By altering the chemical composition of restoration materials
D. By preventing penetration of corrosion products into the dentinal tubules
The most commonly used, most biocompatible and adhesive cement is______________?
A. Zinc phosphate
B. Zinc oxide eugenol
C. Calcium hydroxide
D. Glass ionomer
Frozen slab technique of mixing zinc phosphate is used for_______________?
A. Cementing crowns
B. Temporary dressing
C. base
D. cementing orthodontic bands
Frozen slab technique is applicable to_____________?
A. Zinc phosphate cement
B. Glass Ionomer cement
C. Zinc oxide Eugenol cement
D. Resin cement
Age hardening is a process done at______________?
A. Heating up to 200 – 450°C for 15 – 30 min and quenching in water
B. Heating at 700°C for 10 – 15 min and quenching in water
C. Heating at 700°C for 1 hour and quenching in water
D. Heating above 700°C for 30 min and quenching in water
The cement Which is least soluble in oral cavity______________?
A. Glass ionomer
B. Resin cement
C. Polycarboxylate cement
D. Silico-Phosphate cement
The principal constituent of set silicate cement matrix is_______________?
A. Hydrated Aluminium phosphate
B. Hydrated Aluminium Phosphate with calcium fluoride
C. Hydrate Aluminosilicate gel
D. Hydrated Aluminium phosphate crystal, CAF2 alluminosiliate gel
Strength of zinc phosphate is effected by_______________?
A. Temp of glass slab
B. P:L ratio
C. Consistency of mix
D. Alteration of mixing time
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