Not all dental software costs thousands of euros.
Blue Sky Plan
Blue Sky Plan — fully free 3D implant planning. Comparable to entry-level RealGUIDE or coDiagnostiX.
Meshmixer
Universal STL editor for surgical guide modifications. De-facto standard.
OnDemand3D Lite, 3D Slicer, Blender4Dental
Free DICOM viewers and 3D editors. MillBox integration via Blender.
FreeCAD
Free alternative to Exocad DentalCAD — 30-40% less but enough for simple crowns.
Minimum free set
Blue Sky Plan + Meshmixer + OnDemand3D Lite.
See «CAD/CAM» and «Remote installation».