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

Related Mcqs:

1. 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

2. Inorganic phase of the composites aid in_______________?

   A. Increasing the mechanical strength
   B. Decreasing the coefficient of thermal expansion
   C. Reducing the polymerization shrinkage
   D. All of the above

3. The particle size in microfilled composites is_____________?

   A. 0.05 to 0.04mm
   B. 0.5 to 1.0 microns
   C. 0.01 to 0.1 microns
   D. 0.3 to 0.4mm

4. The main advantage of composites over unfilled direct filling resin is their_____________?

   A. Higher solubility in saliva
   B. Lower modulus of elasticity
   C. Esthetic excellence
   D. Lower thermal co-efficient of expansion

5. 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

6. The opacity in ceramics is achieved by adding_______________?

   A. Boric oxide
   B. Copper oxide
   C. Silica
   D. Titanium oxide

7. Compared with dental alloys, CERAMICS show____________________?

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

8. Ceramics fired to metals are processed by_______________?

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

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

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

10. An enzyme that makes a double stranded DNA copy from a single stranded RNA template molecule is known as____________?

    A. DNA polymerase
    B. RNA polymerase
    C. Reverse transcriptase
    D. Phospho kinase