A. 3-4
B. 4-5
C. 6-7
D. 7-8
Related Mcqs:
- In non zinc containing dental amalgam alloy the percentage of zinc present is______________?
A. Less than 0.02%
B. Less than 0.1%
C. Less than 0.01%
D. None of the above - All of the following is used as accelerator in zinc oxide eugenol cement except_____________?
A. Acetic acid
B. Zinc acetate dehydrate
C. Calcium chloride
D. Bromoglycerine - What is the working time of zinc polyacrylate cement ?
A. 1 Minutes
B. 2 Minutes
C. 3 Minutes
D. 4 Minutes - Percentage of zinc in ZOE cement is__________________?
A. 60%
B. 70%
C. 80%
D. 90% - Advantage of zinc phosphate over GIC is______________?
A. High compressive strength
B. Tensile strength
C. High modulus of elasticity
D. Diametral strength - All of the following statements are true for zinc oxide eugenol cements except______________?
A. Equal lengths of base paste and accelerator paste are mixed together until the mix has a uniform colour
B. Increase in temperature and humidity shorten the setting time
C. The mix appear thick at the start of mixing but after 30 seconds of additional spatulation it becomes more fluid
D. Water accelerates but heat retards the setting of zinc oxide eugenol cements
E. Both C & D - Which of the following acts as accelerator in Zinc oxide eugenol______________?
A. ZnCl2 + Eugenol
B. ZnCl2 + ZnSO2
C. Eugenol + ZnO
D. Zn(OH)2 + ZnO - The effect of zinc oxide-eugenol on the pulp ?
A. Is irritating
B. Encourages pulpal fibrosis
C. Is sedating
D. Has no effect - 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 - Minimum thickness for type I zinc phosphate cement should be_______________?
A. 15 microns
B. 25 microns
C. 50 microns
D. 100 microns
