Thanks to the evolution of radiological acquisition techniques, the use of CT and CBCT by practitioners allowed visualization of bone structures and anatomical obstacles in three dimensions and after implant simulation in the planification software we can place the implant in the ideal position from a prosthetic and surgical point of view. The digital evolution then led us to the manufacture of surgical guides thus eliminating operator-dependent errors. The aim of this work is to review the workflow since the acquisition of DICOM (Digital imaging and communications in medicine) images and / or STL (stereolithography) files (from the scanning of plaster models or) until the final prosthetic steps,a through the preparation of several guides: surgical, implant positioning and graft harvisting.
