Cavex System PackThe violet powder of the Cavex ColorChange System Pack from Practicon, Greenville, NC, turns pink when mixing time has ended, indicating that alginate can be placed in the tray. A second color change to white shows users exactly when the impression has hardened and the tray can be removed from the mouth.

The pack includes six bags of alginate, one alginate container, a water dosing bottle, mixing bowl, and spatula.

Since 1982, Practicon has worked to help dental professionals maximize patient care, productivity, and enjoyment by bringing “practical innovations” to market, the company says. Their growing product line includes hard-to-find problem solvers and everyday supplies ranging from infection control solutions to health education resources.