The hygroscopic technique is associated with______________?
Correct answer: A. Investment
- A. Investment
- B. Hydrocolloids
- C. Amalgam
- D. Silicate
Explanation
The hygroscopic technique is used with gypsum-bonded investments to increase setting expansion while the material sets in contact with water. Hydrocolloids involve water, but the named technique in this context belongs to investment manipulation.
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