Digital Jaw Relation Record of Edentulous Patients in the CAD-CAM Workflow of the Implant-Supported Full-Arch Prosthesis

Figure 1 . Esthetic parameters are informed by a composite central incisor, used as a “guide tooth.” Figure 2. The occlusal profile is drawn on the buccal aspect of the denture posterior teeth and measured according to each dental element. Figure 3. Digital impressions on both the mucosal and buccal surfaces of the interim complete denture (PD) are made using an intraoral scanner. Figure 4. The design of the PD is modified for integration into the digital design of the final rehabilitation. Figure 5. The modified PD replica is 3D-manufactured and used as a clinical try-in during the final clinical check. Figure 6. The PD is used to create the radiographic guide for computed tomography scans.

Figure 7. The concept of occlusal transfer. A digital impression of the occlusion is created to allow the software to register the occlusal relationship of the upper and lower arches, according to the occlusion previously determined using the PD; this relationship then serves as a radiographic guide. Figure 8. Superimposition of the two full-arch impression STL files (brown) onto the occlusal registration file (blue). Figure 9. The provisional fixed prosthesis (CIR) is a copy of the revised PD. Figure 10. (a) Metal framework; (b) 3D-manufactured pink resin; (c) Cementation of the framework. Figure 11. Full-arch rehabilitation of the upper and lower arches.