Co-efficient of thermal expansion is highest for_____________?

Related Mcqs:

1. 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...

2. Coefficient of thermal expansion of metal-ceramic alloys is________________?

   A. Same as porcelain B. More than porcelain C. Less than porcelain D. More than or equal to porcelain but not less...

3. Linear coefficient of thermal expansion of metal used for metal caramic restoration range from________________?

   A. 11.5-12.5×10-6/°C B. 10.5-11.5×10-6/°C C. 13.5-14.5×10-6/°C D. 16.5-17.5×10-6/°C...

4. Coefficient of thermal expansion of which of following is most similar to that of tooth ?

   A. Gold inlay B. Acrylic resin C. Silicate cement D. Gold foil...

5. Coefficienty of thermal expansion of tooth enamel is closest to_______________?

   A. Slicate cement B. Composite C. GIC D. Polycarboxylate...

6. Co-efficient of Thermal exansion of amalgam is______________?

   A. 6.6 a (ppm k-1) B. 11.4 a (ppm k-1) C. 14.0 a (ppm k-1) D. 25.0 a (ppm k-1)...

7. Which one of the following categories of dental materials has the highest thermal conductivity_________________?

   A. Unfilled acrylic plastics B. Gold alloys C. Porcelains D. Zinc phosphate cements...

8. Polycarboxylate cement is used for_____________?

   A. Temporary restoration B. Leuting C. Permanent restoration D. Die material...

9. Povidine iodine is used for_____________?

   A. Burns B. Tinea C. Non-specific vaginitis D. All of the above...

10. Ipratropium bromide is used for_____________?

    A. Renal colic B. Organophosphorus poisoning C. Bronchial asthma D. miosis...