Gypsum is used for________________?
Correct answer: D. Casts and Dies
- A. Impressions
- B. Casts
- C. Die
- D. Casts and Dies
Explanation
Gypsum products are mainly used to make positive replicas of oral structures, including study casts, working casts and dies. Although impression plaster exists, the general use of gypsum in laboratory work is for casts and dies.
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Practise Restorative Materials
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