Final answer:
The statement about gypsum products having the same water to powder ratio is false. The ratio varies depending on the type and intended use of the product, with different types like mounting plaster, silky rock, and microstone each having their own prescribed ratios. option b is answer
Step-by-step explanation:
The statement that all gypsum products (silky rock, microstone, mounting plaster) have the same water to powder ratio is false. Gypsum products, often used in dentistry for creating models and casts, vary in their water to powder ratio depending on the type and intended use. Factors such as setting time, expansion properties, and strength affect the manufacturer's recommended ratio for each product.
For example, mounting plaster typically has a higher water to powder ratio compared to silky rock or microstone, which require less water to achieve their desired properties. It's crucial for dental professionals to adhere to the specific ratios provided by the manufacturers to ensure the accuracy and integrity of dental models and casts. Option b is answer