The particle size in microfilled composites is_____________?
Correct answer: C. 0.01 to 0.1 microns
- 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
Explanation
Microfilled composites use extremely small colloidal silica particles, commonly about 0.01 to 0.1 microns. The other values are either too large or expressed in an inappropriate range for microfillers.
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