The setting time of irreversible hydrocolloids can be decreased by_____________?

Related Mcqs:

1. A technique of combining reversible and irreversible hydrocolloid that could bond to irreversible hydrocolloid is known as________________?

   A. Injecting technique
   B. Laminate technique
   C. Immersion technique
   D. Tempering technique

2. The setting time of ZnPO4 cement can be retarded by_____________?

   A. mixing more powder to the liquid
   B. mixing powder to liquid, checked by water
   C. slower addition of powder to liquid
   D. faster addition of powder to liquid

3. The setting of zinc phosphate is accelerated by_____________?

   A. Adding a drop of water
   B. Increasing mixing time
   C. Cooling the slab
   D. Adding a drop of oleic acid

4. Which of the following is an irreversible side enact resulting from long term administration of phenothiazline antipsychotics__________________?

   A. Infertility
   B. Parkinsonism
   C. Tardive dyskinesia
   D. B & C

5. Pain due to acute irreversible pulpitis is:____________?

   A. Spontaneous
   B. Sharp- shock like
   C. Lasting for short time
   D. Continuous

6. Reversible pulpitis change to irreversible pulpitis primarily because of:__________?

   A. Vacular strangulation
   B. Reduced host resistance
   C. Invasion of microorganisms
   D. An increase in microbial virulence

7. All of the following can be used to slow down the setting of Zinc oxide eugenol impression paste EXCEPT_________________?

   A. Adding a small amount of glycerine
   B. Adding a small amount of water
   C. Altering the amounts of the two pastes used
   D. Cooling mixing slab

8. Vulcanization refers to the setting of__________________?

   A. Reversible hydrocolloid
   B. Mercaptan impression material
   C. Zinc Phosphate cement
   D. Zinc oxide-eugenol

9. Setting time of ZOE is best controlled by______________?

   A. Adding a drop of eugenol
   B. Adding a drop of water
   C. Cooling the glass slab
   D. Altering ratio of two pastes

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

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