Which of the following is true for hydrocolloids in dentistry?

Question

Quizplus · Accepted Answer

Agar hydrocolloid is a reversible hydrocolloid.When agar powder is mixed with water,it forms a gluelike suspension that entraps the water,making a colloidal suspension called a sol.When the agar sol is chilled,it will gel,becoming a semisolid or jelly-like.The main clinical use of reversible hydrocolloid is for impressions of operative and crown and bridge procedures.The use of agar hydrocolloid requires stock metal trays with tubing running through them that connects to a water line by rubber hoses to circulate tap water through the tray.

Which of the Following Is True for Hydrocolloids in Dentistry