Immediate pouring of impressions is most critical in_____________?

Related Mcqs:

1. 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

2. Dimensional stability of hydrocolloid impressions may be achieved by_________________?

   A. Using less water powder ratio
   B. Storing the impression under water
   C. Prolonged manipulation
   D. Using humidor

3. Rubber base impressions are poured immediately as they_______________?

   A. Continue to polymerize
   B. Become elastic
   C. Show imbibition and syneresis
   D. Show gelation

4. The most significant immediate result of lowered serum calcium is_______________?

   A. Weakened heart action
   B. Decalcification of bones
   C. Decalcification of teeth
   D. Hyperirritability of nerves and muscles

5. The immediate precursor of norepinephrine is______________?

   A. Epinephrine
   B. Tyrosine
   C. Dopamine
   D. Phenylalanine

6. The immediate type of hypersensitivity in which histamine doses not play a major role is______________?

   A. Urticaria
   B. Asthma
   C. Anaphylaxis
   D. Arthus reaction

7. In acute inflammation, immediate transient permeability in cells is increased by__________?

   A. Direct injury & necrosis
   B. Endothelial Gaps by histamine
   C. Leucocyte mediated endothelial injury
   D. Increased tissue oncotic pressure

8. Once triturated, the Dental amalgam should be condensed with in_____________?

   A. 5 minutes
   B. 6 minutes
   C. 3 minutes
   D. 15 minutes

9. Insufficient closure of the flasks during packing of denture base resin can result in_____________?

   A. Poor colour stability
   B. Less polymerization shrinkage
   C. Increase in vertical dimension
   D. Decrease in vertical dimension

10. Insufficient closure of the flasks during packing of denture base resin can result in_____________?

    A. Poor colour stability
    B. Less polymerization shrinkage
    C. Increase in vertical dimension
    D. Decrease in vertical dimension