To cure a heat cure resin, a proper heating cycle is necessary_____________?

Related Mcqs:

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

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

2. 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

3. 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

4. In heat cure denture base acrylic resins the monomer is___________?

   1. Methacrylate
   2. Ethylmethacrylate
   3. Methyl ethyl methacrylate
   4. Polymethylmethacrylate

5. The % of free monomer in a heat – cured acrylic resin is_______________?

   A. 3% to 5%
   B. 8% to 10%
   C. 0.2% to 0.5%
   D. 0.6% to 0.8%

6. 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

7. Acrylic (cold cure)______________?

   A. Melts at 100°C
   B. Softens at 100°C
   C. Still requires heat for polymerization
   D. Produces heat during polymerization

8. Quartz tungsten light cure device minimum output of energy should not be less than_____________?

   A. 300 mw/sm2
   B. 350 mw/cm2
   C. 400 mw/cm2
   D. 450 mw/cm2

9. Cold cure acrylic expand in water by___________?

   A. 1% by volume 0.23% by weight
   B. 10% by volume 0.23% by weight
   C. 0.1% by volume 0.23% by weight
   D. None of the above

10. Light cure system, side effect is____________?

    A. Iritis
    B. Cataract
    C. Conjunctivitis
    D. Retinal damage