A. Mouth breathers
B. Patients with high caries index
C. In the restoration of posterior tooth
D. None of the above
Related Mcqs:
- The average life of silicate cement restoration is______________?
A. 2 years
B. 4 years
C. 6 years
D. 8 years - 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 - One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?
A. Prevent galvanic action
B. Are practically insoluble in oral fluids
C. Adapt to the walls of the cavity better
D. Have a higher coefficient of thermal expansion - Which of the following is common to both zinc eugenol cement and polycarboxylate cement?
A. Polyacrylic acid is liquid
B. Chemical bond to tooth structure
C. Chelation
D. Substitution o eugenol by EBA to increase strength of cement - The temperature (in °F) of the mixing slab for silicate cements should be_____________?
A. 55 – 65
B. 65 – 75
C. 75 – 85
D. 85 – 95 - 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 - 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 - By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate_______________?
A. Ethyl alcohol
B. Glycol
C. Acetate
D. Propanolol - Crucible indicated for casting base metal alloys is______________?
A. Carbon crucible
B. Clay crucible
C. Quartz crucible
D. High melting plastic crucible - Which of the following procedure is indicated to produce cross-linking in the polymerization of linear chains of acrylic_______________?
A. Addition of grain refining agents
B. Addition of difunctional monomers
C. Increasing the amount of heat required for linear polymerization
D. Incorporation of terminating agents
