The polymerization of self-curing resin takes faster in______________?

Related Mcqs:

1. To prevent porosity in self-cure acrylic resin, curing should be carried in______________?

   A. Cold water
   B. Hot water
   C. Under tap water
   D. Under vacuum pressure

2. For photo-curing the composite resin the light source______________?

   A. Should be held at a millimeter distance from the restoration
   B. Need no protection while in use
   C. Will cure composite upto a depth of 5 millimeter thickness
   D. Is fiber optic

3. The commonly used laser for curing composite resin is______________?

   A. Nd:YAG
   B. CO2
   C. ER:YAG
   D. Argon

4. One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?

   A. Prevent galvanic action
   B. Are practically insoluble in oral fluids
   C. Adapt to the walls of the cavity better
   D. Have a higher coefficient of thermal expansion

5. In self-cure acrylic resin, activator is_____________?

   A. Toluidine
   B. Quaternary ammonium compound
   C. Benzoyl peroxide
   D. Tertiary amine

6. Which of the following procedure is indicated to produce cross-linking in the polymerization of linear chains of acrylic_______________?

   A. Addition of grain refining agents
   B. Addition of difunctional monomers
   C. Increasing the amount of heat required for linear polymerization
   D. Incorporation of terminating agents

7. About polymerization shrinkage of composite all are true, except______________?

   A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
   B. Polymerization shrinkage is high if within the enamel margins
   C. Acid etching and priming will decrease polymerization shrinkage
   D. Microleakage can occur because of polymerization shrinkage

8. What is the polymerization shrinkage if 3:1 powder: liquid ratio is used____________?

   A. 6%
   B. 8%
   C. 10%
   D. 21%

9. If curing occurs at temperature more than 100°C porosity results in which area of denture______________?

   1. Hard thick central area
   2. Thin Palatal area
   3. Thin area of flanges
   4. Porosity is uniformly distributed

10. The imperfection seen on the lingual flange of a lower denture caused by rapid heating during a curing cycle is called_____________?

    A. Localised Shrinkage porosity
    B. Gas inclusion porosity
    C. Micro porosity
    D. Surface porosity