E4D Dentist® is designed with the patient in mind. The E4D is a CAD/CAM system that is revolutionizing modern dentistry. E4D system is a variation of a new dental technology that produces several types of dental restorations right in your dental office. Same-day crowns, inlays, onlays and veneers that provide a tremendous convenience for our patients. What does this mean for you as the patient? It means you get immediate results and quality care!