Trueness evaluation
The primary outcome variables describing implant placement accuracy were angular deviation, coronal global deviation, and apical global deviation. The primary outcome variables were calculated by an investigator (A.T.) blinded to the modality used for implant placement during the model surgery. Planned implant positions relative to the surface of the models were exported using the Virtual Planning Export option of the coDiagnostiX 10.6 (Dental Wings, Montreal, Canada, USA) software in STL file format. Variables were calculated using Slicer 5.2.2 (The Brigham and Women’s Hospital, Inc., Boston, USA) software following the registration of the STL files of the surgical plan, postoperative scan, and implants and scan bodies [
Outcome variables were measured in Slicer 5.2.2 (The Brigham and Women’s Hospital, Inc., Boston, USA). Cylinders represent the planned implant positions, whereas the dental implant surfaces represent the achieved implant positions. Registration of the STL files of the surgical plan and postoperative scan (