Utilizes the clear, rigid, thermoplastic, disposable dental impression trays. They are crystal clear, allowing visualization of the underlying anatomy. Designed to work with all impression materials. When combined with a clear PVS impression material, they can be used as a matrix to make temporary restorations with light cured, dual cured or self curing materials. Blend of plastics allows the tray to be strong yet easily molded with any flame heat source.