The rate of tarnish and corrosion of class II cast material having VHN 200 is_______________?

Related Mcqs:

1. Best material for duplicating cast is_______________?

   A. Agar-agar
   B. Alginate
   C. Zinc oxide eugenol
   D. Plaster of paris

2. Resistance to corrosion in a cobalt-chrome casting is due to presence of_______________?

   A. High quality iron
   B. Chrome
   C. Cobalt
   D. Nickel

3. In Base metal alloys, Corrosion resistance occurs due to___________________?

   A. Passivity
   B. High Fusion Temperature
   C. High Molecular Weight
   D. Co-efficient of Thermal Expansion

4. Corrosion of stainless steel is due to formulation of_________________?

   A. Chromium carbide
   B. Carbon carbide
   C. Iron carbide
   D. Nickel carbide

5. Most biocompatible material in oral cavity is_______________?

   A. Platinium
   B. Palladium
   C. Titanium
   D. Gold

6. The class of amino acids that contains only non essential amino acids is_______________?

   A. Acidic
   B. Basic
   C. Aromatic
   D. Branched chain

7. The plasticizers used in polyether impression material is_______________?

   A. polyether polymer
   B. Colloidal silica
   C. Glycol ether
   D. Di-vinyl poly (dimethyl siloxane)

8. The most mucostatic impression material is_______________?

   A. Thin mix of plaster of paris
   B. Zinc oxide eugenol impression paste
   C. Free flowing wax
   D. Reversible hydrocolloids

9. Who was the first person to introduce cast inlay restoration into dentistry ?

   A. William H Taggart
   B. Buonocore
   C. G.V. Black
   D. Bowen

10. Which of the following cast gold alloys is used for fabricating partial denture frameworks______________?

    A. Type I – Soft
    B. Type II – Hard
    C. Type III – Hard
    D. Type IV – Extra Hard