A. Molybdenum
B. Germanium
C. Titanium
D. Chromium
Related Mcqs:
- 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 - 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 - 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 - 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 - 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 - The opacity in ceramics is achieved by adding_______________?
A. Boric oxide
B. Copper oxide
C. Silica
D. Titanium oxide - Compared with dental alloys, CERAMICS show____________________?
A. High ductility
B. High hardness
C. Low esthetic value
D. Susceptibility to brittle fracture - Ceramics fired to metals are processed by_______________?
A. Heat pressing
B. Machining
C. Sintering
D. Slip casting - Dispersion of crystalline phase to strengthen ceramics results in_________________?
A. dispersed porcelain
B. Glazed porcelain
C. aluminium porcelain
D. All of the above - 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
