Which of the following provide opacity to composite ?

Related Mcqs:

1. Radio opacity to composite resins is rendered by_______________?

   A. Silica glass
   B. Organic matrix
   C. Barium glass and strontium glasses
   D. Fluoride particles

2. The opacity in ceramics is achieved by adding_______________?

   A. Boric oxide
   B. Copper oxide
   C. Silica
   D. Titanium oxide

3. Opacity around colonies of Clostridium perfringens is due to_________________?

   A. Theta toxin
   B. Lecithinase
   C. Desmolase
   D. Cytokinin

4. Which of the following constituents is common in occlusal sealants, bonding agents, composite resins ?

   A. BIS GMA
   B. Polymethyl methacrylate
   C. Benzoin methyl ether
   D. Silica filter

5. Which one of the following is used as filler in composite resins ?

   A. Quartz
   B. Silicates
   C. Zinc particles
   D. Aluminium

6. Which one of the following is used as filler in composite resins ?

   A. Quartz
   B. Silicates
   C. Zinc particles
   D. Aluminium

7. Which of the following is an example of a composite material ?

   A. A filled resin
   B. Colloidal silica
   C. Gold alloy
   D. Wax

8. Which of the following inhibitor accelerator system uses light activation composite ?

   A. Diketone-amine
   B. Organic acid-metal oxide
   C. Organic acid-peroxide
   D. Peroxide-amine

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

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

10. 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