Z-Beads Zirconia Sintering Beads, from Dental Creations, provide a better temperature rate when using sintering trays. Because the sintering tray and Z-Beads heat at two different temperature rates, Z-Beads absorb the heat and provide a controlled temperature, which helps prevent shrinkage. Zirconia Sintering Beads support crowns, inlays, onlays, veneers, and bridges during the sintering process. Z-Beads can withstand up to 1700°C and are made of high purity zirconia that provide contamination-free results for restorations. For best results, use with Vented Sintering Tray.