Which of the following gypsum products is ideal for making full or partial denture models,orthodontic models,and casts requiring higher strength and abrasive resistance?

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Dental stone (Type III)is ideal for making full or partial denture models,orthodontic models,and casts requiring higher strength and abrasive resistance.Because of the particle characteristics,stone requires less water (W/P ratio = 0.30);it therefore packs together more tightly and is denser and approximately 2.5 times stronger than plaster.Stone is traditionally colored yellow or white.

Which of the Following Gypsum Products Is Ideal for Making