The function of the coupling agent in a restorative resin is to allow______________?

Related Mcqs:

1. 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

2. What is the disadvantage of using composites as restorative material ?

   A. Increased thermal conductivity
   B. Decreased wear resistance
   C. Decreased thermal conductivity
   D. None of the above

3. What is the most frequently used restorative material ?

   A. Silicate
   B. Amalgam
   C. Composite
   D. Gold

4. Which one of the following restorative materials is having coefficient of thermal expansion close to that of tooth enamel and dentin ?

   A. Microfilled composite resins
   B. Pure gold
   C. Silver amalgam
   D. Type II Glass ionomer cement

5. Why GIC is best restorative material in children_____________?

   A. High strength
   B. Good marginal integrity
   C. It can bond enamel & dentin
   D. It has less occlusal wear

6. The Knoop Hardness Number of Microfilled composite Restorative material ranges from____________?

   A. 50 – 60 KHN
   B. 25 – 35 KHN
   C. 15 – 20 KHN
   D. 40 – 48 KHN

7. A restorative material which has a high proportional limit, compared with one with a lower proportional limit would have________________?

   A. Greater ductility
   B. Greater toughness
   C. A higher modulus of elasticity
   D. A higher modulus of elasticity
   E. More resistance to permanent deformation

8. The most common coupling agents are organic silicon compound called_______________?

   A. Parabane
   B. Ligane
   C. Silane
   D. Chelane

9. The polymerization of self-curing resin takes faster in______________?

   A. Cold water
   B. Hot water
   C. Under pressure
   D. In vaccum

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

    A. To prevent the porosity
    B. To prevent warpage
    C. To prevent volume expansion
    D. All of the above