Flux used in dental ceramic is________________?
Correct answer: D. Boric oxide
- A. Alumina
- B. Silica
- C. Kaolin
- D. Boric oxide
Explanation
Boric oxide acts as a flux by lowering the softening and fusion temperature of the ceramic mixture. Silica forms the glassy framework, alumina strengthens it, and kaolin serves as a binder.
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