The opacity in ceramics is achieved by adding_______________?

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. Which of the following provide opacity to composite ?

   A. TEGDMA
   B. BIS-GMA
   C. Ti02
   D. None of the above

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

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

4. Compared with dental alloys, CERAMICS show____________________?

   A. High ductility
   B. High hardness
   C. Low esthetic value
   D. Susceptibility to brittle fracture

5. Ceramics fired to metals are processed by_______________?

   A. Heat pressing
   B. Machining
   C. Sintering
   D. Slip casting

6. Dispersion of crystalline phase to strengthen ceramics results in_________________?

   A. dispersed porcelain
   B. Glazed porcelain
   C. aluminium porcelain
   D. All of the above

7. What is common in amalgam and ceramics ?

   A. More compressive strength but less tensile strength
   B. More compressive strength and tensile strength
   C. Less compressive strength but more tensile strength
   D. Less compressive strength and tensile strength

8. Apart from composites and ceramics, another material that could be copy milled easily and inexpensively is_________________?

   A. Molybdenum
   B. Germanium
   C. Titanium
   D. Chromium

9. Dimensional stability of hydrocolloid impressions may be achieved by_________________?

   A. Using less water powder ratio
   B. Storing the impression under water
   C. Prolonged manipulation
   D. Using humidor

10. Stabilization of stainless steel is achieved by adding____________?

    A. Carbon
    B. Chromium
    C. Nickel
    D. Titanium