An improved dental tooth spacer assembly provides a safe separation of the restoring tooth and the adjacent tooth during dental procedures. The hybrid data storage card has an integrated circuit module and an optical memory unit both on a single side of the hybrid card. The real-time information can be obtained from a tile andor a website integrated with a remote server and announced after a text to speech conversion process without opening the tile, if the tiles are selected for announcement of information by the device. The tray drive is also used to move the sample tray along the path during a temperature averaging period when no loading occurs.