Which of the following is an example of a composite material ?
Correct answer: C. A filled resin
- A. Gold alloy
- B. Colloidal silica
- C. A filled resin
- D. Wax
Explanation
A composite contains at least two distinct phases, such as a resin matrix reinforced with inorganic filler, so filled resin is the appropriate example. Colloidal silica is only a filler, while gold alloy and wax are not typical dental composites.
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