IPS Empress CAD is leucite glass ceramic offering three translucencies (Low, High, and Multi) that offer excellent esthetics to compliment high strength and over 20 years of clinical success in press and CAD/CAM technology. A feature of Empress CAD is the increase in fracture strength when glaze firing the final restoration. The chart below shows the fracture strength of Empress CAD when milled, milled & polished, and milled & glaze fired. A glazed fired Empress CAD restoration (approximately 10 minute glazing cycle) shows a significant increase in fracture strength compared to a polished only restoration. So when making material choices, you can optimize fracture strength by glaze firing Empress CAD.
Posted by ivoclarcadnews May 1, 2012