10 metal-porcelain dental restorations; namely, crowns, bridges, veneers, inlay and copings; dental products; namely, flexible sacks for protection of dies and copings during the formation of dental restorations; dental tools; namely, burnishers and tweezers for use in the manufacture of metal-porcelain dental restorations; and dental restoration forming devices; namely, an isostatic press for use in the formation of metal-porcelain dental restorations and a kit for the production of metal-porcelain dental restoration