Fig. 5

“The digital relining (DR-) approach”. a: relined denture prototype; b: virtual model of the relined surface obtained with a Trios scanner; c: alignment of the relined surface with the existing denture design through the reference teeth and basis surfaces using the best-fit protocol (DentalCAD, Exocad, Darmstadt, Germany); d: “digitally relined” denture basis fabricated with Solflex 170 3D printer ‘as is’ (W2P Egineering, Vienna, Austria); e: fitting the artificial teeth into the corresponding sockets using a transfer key; f: 3D printed final denture surface with functional borders