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

Related Mcqs:

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

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

2. All of the following statements about the differences between self-polymerizing acrylic resins and heat-cured resins are true EXCEPT______________?

   A. The former have a lower molecular weight
   B. The former have higher residual monomer content
   C. The former are more porous
   D. The former have greater transverse strength

3. 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

4. Radio opacity to composite resins is rendered by_______________?

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

5. Composite resins in comparison to acrylic have_______________?

   A. Low compressive strength
   B. High abrasive resistance
   C. High water absorption
   D. High polymerization shrinkage

6. Bonding of composite resins to tooth structure is by________________?

   A. Covalent bond
   B. Ionic bond
   C. Mechanical
   D. Vanderval forces

7. The cohesive gold used as bulk filler is_____________?

   A. Electra alloy
   B. Mat gold
   C. Spherical gold
   D. Gold foll

8. During soldering, the solidus temperature of the filler material should be_____________?

   A. Greater than the substrate material
   B. Lesser than the substrate material
   C. Equal to the substrate material
   D. Temperature not relevant

9. Acrylic resins were first introduced as a denture base material in______________?

   A. 1925
   B. 1937
   C. 1951
   D. 1956

10. Acrylic resins are used for______________?

    A. Anterior restorations
    B. Temporary bridges
    C. Denture base
    D. All of the above