A. Boric oxide
B. Copper oxide
C. Silica
D. Titanium oxide
Related Mcqs:
- Radio opacity to composite resins is rendered by_______________?
A. Silica glass
B. Organic matrix
C. Barium glass and strontium glasses
D. Fluoride particles - Which of the following provide opacity to composite ?
A. TEGDMA
B. BIS-GMA
C. Ti02
D. None of the above - Opacity around colonies of Clostridium perfringens is due to_________________?
A. Theta toxin
B. Lecithinase
C. Desmolase
D. Cytokinin - 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 - 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 - Apart from composites and ceramics, another material that could be copy milled easily and inexpensively is_________________?
A. Molybdenum
B. Germanium
C. Titanium
D. Chromium - 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 - Stabilization of stainless steel is achieved by adding____________?
A. Carbon
B. Chromium
C. Nickel
D. Titanium
