The invention relates to a method for designing a dental prosthesis using digital techniques, which comprises the following steps: scanning tissues of the upper jaw, thereby obtaining a mesh representation of the tissue of the upper jaw; scanning tissues of the lower jaw, thereby obtaining a mesh of the tissue of the lower jaw; scanning posts (35), thereby obtaining a scanned mesh of posts from which the relative position between implants is obtained; and scanning the occlusion of the jaws, thereby obtaining at least one occlusion mesh for each side of the arches. The method of the invention also includes verifying the data obtained in the steps of scanning the scanning posts (35) and scanning the occlusion, to ensure that the starting information when designing the prosthesis is correct. Lastly, the method of the invention includes a finite element analysis to identify the mechanical loads in each of the elements of the digital structure of the prosthesis, and if there is any weak point or area in the structure of the prosthesis, the weak point or area is reinforced.