The addition of which of the following can accelerate the setting time of zinc oxide cement_____________?
Correct answer: A. Zinc acetate
- A. Zinc acetate
- B. Barium sulphate
- C. Zinc sulphate
- D. Barium chloride
Explanation
Zinc acetate acts as an accelerator in zinc oxide cements, shortening the setting time. Barium salts are generally radiopaque additives rather than setting accelerators.
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