Which of the Following Is True for Hydrocolloids in Dentistry

question 10

Multiple Choice

Which of the following is true for hydrocolloids in dentistry?

• A) Agar hydrocolloid is a reversible hydrocolloid.
• B) When agar powder is mixed with water, it forms a glue-like suspension that entraps the water, making a colloidal suspension called a gel.
• C) The main clinical use of reversible hydrocolloid is for impressions for diagnostic casts.
• D) Agar hydrocolloid requires the use of custom impression trays.

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