Mode of failure during dislodgement of prosthesis cemented with zinc poly carboxylate cement is usually seen at the_____________?

Related Mcqs:

1. 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

2. 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

3. Increased amount of powder in zinc phosphate cement mixture will cause_______________?

   A. Decreased strength
   B. Decreased film thickness
   C. Decreased solubility
   D. Increased setting time

4. Eugenol may be replaced in the zinc oxide eugenol cement by______________?

   A. Acetic acid
   B. Alginic acid
   C. Phosphoric acid
   D. Ortho-ethoxy acid

5. 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

6. Which component of zinc oxide-eugenol cement gives its strength ?

   A. Rosin
   B. Zinc oxide
   C. Zinc acetate
   D. Oil of cloves

7. The principle application of zinc phosphate cement is_____________?

   A. In final cementation
   B. As temporary cementation
   C. As a temporary filling material
   D. It has less occlusal wear

8. 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

9. The major component of zinc phosphate cement is_____________?

   A. Zinc oxide
   B. Phosphoric acid
   C. Zinc
   D. None of the above

10. The chief advantage of zinc phosphate cement is its___________?

    A. Good compressive strength
    B. Film thickness
    C. Lack of irritation
    D. Low solubility