The E4D Dentist system is a computer-aided design and manufacturing (CAD/CAM) machine that produces dental crowns in mere minutes and is customized for your mouth. The traditional method of fitting dental crowns includes two appointments a few weeks apart and the installation of a temporary crown during the first appointment. With the E4D system used at the Center for Dentofacial Aesthetics, that timeline is reduced to just one appointment with the permanent installed that day.