47 Maxillary implant overdentures: surgical templates in atrophic jaws representing both the planned and post-operative positions of the implants (Figure 3.4a). Then, both the virtually planned and the post-op datasets were aligned using the surface based matching functions of the Proplan software (Figure 3.4b). Figure 3.4 | Aligning scans. (a) Virtual analogues (red) of the implants are aligned exactly with the segmented implants (blue). (b) The virtually planned and post-op datasets are aligned using the surface based matching functions. Figure 3.5 | Deviation measurement. Global (Point A-B), lateral (Point A-C), depth (point A-D) and angular (α) deviations. The following deviations were measured (Figure 3.5): global deviation, which is the 3D distance between the coronal centres of the planned and placed implants (point A to B); angular devi3
RkJQdWJsaXNoZXIy MTk4NDMw