Abstract: Procedure and device, through which it is possible to realize a three-dimensional and transparent representation of the crest of each plater mold, and then to displace this representation, while keeping it parallel to its original position, in a direction at least approximately perpendicular to the occlusal plane, thus translating to an occlusal level under a three-dimensional form, the characteristics of the anatomic conformation of the underlying alveolar crests. Therefore, even after the application of a wax mask over the plaster mold, we still dispose of a representation of the crest, so displaced by perpendicular translation as to leave free the space needed for the fitting of the teeth, and this representation will allow in every moment to select the position of the different teeth and to control the position assigned, singularly and collectively, to the teeth themselves.