Question 70 · LDEK · Composites
What is the size of filler particles in microfill composites?
- A. 10-100 µm.
- B. 1-10 µm.
- C. 0.1-1 µm.
- D. 0.01-0.04 µm.
- E. 0.002 - 0.075 µm.
Hint
Microfill composites contain colloidal pyrogenic silica; estimate its average particle size in nanometres and convert it to micrometres.
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