Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid_______________?

Related Mcqs:

1. Agar impression materials differ from alginate impression materials in that the former sets by_______________?

   A. Mechanical action of saliva
   B. Physical change
   C. Evolution
   D. Chemical change

2. Which of the following impression materials is easy to pour and difficult to remove the stone cast from the impression ?

   A. Addition polysilicone
   B. Condensation polysilicone
   C. Polyether
   D. Polysulfide

3. Following is non-essential amino acid_______________?

   A. Phenylalanine
   B. Proline
   C. Tryptophan
   D. Threonine

4. Alginate impression material is similar to Agar-agar impression material in the following respect________________?

   A. Gelation increase in both on increase in temperature
   B. Mixing time is increased to reduce the setting time
   C. Deformation during removal of impression occurs due to distortion of gel fibers
   D. Both can be re-used for fresh impressions

5. Before pouring an elastic impression it is washed with slurry of water and stone to______________?

   A. Increase gel strength
   B. Prevent syneresis
   C. Prevent distortion
   D. Wash off saliva on impression

6. One of the most important advantages of truly elastic impression material would be its capacity for______________?

   A. Close adaptation to soft tissues
   B. With drawl without permanent distortion
   C. Reproduction of surface details
   D. Compatibility with gypsum products

7. Best impression material to be used for securing impression after crown preparation_______________?

   A. Alginate
   B. Agar
   C. Elastome
   D. Zno paste

8. Heavy and light body impression materials are use with______________?

   A. Mercaptan
   B. Silicone
   C. Reversible hydrocolloid
   D. A and B

9. Two in one stage impression materials include______________?

   A. Zinc Oxide eugenol impression paste
   B. Hydrocolloid impression material
   C. Elastomeric impression material
   D. All of the above

10. Palatal secretions affect the setting of all the impression materials except_______________?

    A. Silicone
    B. Agar-agar
    C. Impression paste
    D. Impression plaster