Fig. 2

Available workflows for preoperative implant planning. A Conventional implant planning with a conventional prosthetic set-up on stone casts of patients without 3D image data acquisition. B and C Virtual implant planning with a prosthetic set-up fabricated on individual stone cast being transferred to a radiographic splint. D Virtual implant planning with the prosthetic set-up being optically scanned along with the stone cast and registered with the radiographic data for subsequent planning. The digitization requires no preliminary radiographic splint as prior steps are performed within the software. E Virtual implant planning with a virtual prosthetic set-up requiring no conventional set-up and radiographic splint resulting in reduced working steps within the complete digital workflow