[Digital smile design and anterior monolithic restorations chair side fabrication with Cerec Cad/Cam system].

Digital dentistry and digital smile design are both components of modern dentistry. The combination of the two enables the dentist to simulate the desired outcome, share the mock up with the patient and coordinate his or her expectations with the probable esthetic outcome. In this article a case is presented of anterior restorations performed to improve the smile and esthetics of the patient, combining the digital smile design (by Christian Coachman) and the Avatar Digital smile aide of the Cerec SW4 (sirona Germany) software for designing and the MCxI inlab milling unit for the fabrication. The patients picture was imported into the software and the model of the teeth was super imposed into the 3d picture of the face enabling positioning the incisal edge and midline in the desired place and sharing the virtual demo with the patient. All this procedure was performed after the patient had a mockup session in the mouth done according to the wax up procedure. The mockup can be scanned in the mouth and added as a protocol to the patient's digital models, to be used later in the biogeneric copy option. Using this option the software uses the outline of the mockup as guide lins for the final restoration computerized proposal. It is still an aide tool to be improved and simplified but definitely it is the present and future of chair side prosthodontics.