46 Chapter 3 Following surgery, the template fit was recorded and the patients were instructed not to wear their denture for two weeks. A CBCT scan was made to check implant positioning, using similar scan settings. The sutures were removed and the patient’s denture was adjusted and relined with a soft reline (Soft-Liner, GC, Leuven, Belgium). The patients were examined during the regular check-ups at six and twelve weeks. After osseointegration, an implant overdenture was made by one prosthodontist (HJAM). Figure 3.3 | Surgical procedure. (a) The template is positioned by placing it on the alveolar ridge. Then, the two brackets are rotated onto the nasal notch. (b) The implant beddings are prepared using the manufacturer’s sleeves. (c) After preparation, the implants are manually placed at 45Ncm. Notice the thin atrophic alveolar crest. (d) The implants are positioned according to the template. (e) The cover screws are placed. (f) The wound is sutured with a non-resorbable material. Analysis Following segmentation of the post-op CBCT, virtual analogues of the implants were aligned exactly on the post-op CBCT data by the first observer (PO), in order to obtain identical objects
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