In aesthetic dentistry, we hardly consider a clinical case with a global approach: we analyze the aesthetic parameters and the parameters of the face, the morphology and dental axes, the stability and geometry of the tissues; we forget the function. The function becomes a consequence of treatment only and is not a determinant of long-term success. In the management of complex dental treatment, we will illustrate how to code a working methodology for a correct prosthetic and multidisciplinary project both analogically and digitally; we will analyze all the parameters that allow us to integrate the treatment into the patient’s masticatory function to obtain a correct aesthetic-functional rehabilitation.