A. ZnO is converted to Zn(OH)2
B. Reaction is autocatalytic
C. Water is the byproduct of reaction
D. Dehydrated ZnO reacts with dehydrated eugenol
Related Mcqs:
- Eugenol may be replaced in the zinc oxide eugenol cement by______________?
A. Acetic acid
B. Alginic acid
C. Phosphoric acid
D. Ortho-ethoxy acid - 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 - 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 - 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 - Which component of zinc oxide-eugenol cement gives its strength ?
A. Rosin
B. Zinc oxide
C. Zinc acetate
D. Oil of cloves - The effect of zinc oxide-eugenol on the pulp ?
A. Is irritating
B. Encourages pulpal fibrosis
C. Is sedating
D. Has no effect - The Zinc oxide-eugenol impression pastes harden by________________?
A. Chemical reaction
B. Cold
C. Heat
D. Pressure - The role of magnesium chloride in zinc oxide eugenol impression paste_________________?
A. Retarder
B. Modifier
C. Plasticier
D. Accelerator - Name the accelerator used in Zinc oxide eugenol paste______________?
A. Olive oil
B. Linseed oil
C. Zinc acetate
D. All of these - Retarder in Zinc oxide eugenol is______________?
A. CaCl2
B. Zinc acetate
C. Alcohol
D. Glycerine
