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ePaper created 2015-09-09, 12:07:54 | version 1.38.0
case report _ treatment of edentulous maxilla I Caps, was checked and the framework then removed fromthemouth(Fig.15).Anewimpressionwastaken using an individual tray and polyether impression material to pick up the cobalt-chrome framework (Fig.16).ThesixATLANTISConusabutmentswerenot replaced by the gingiva formers again. Therefore the temporary denture had to be largely adjusted to pro- videspacefortheabutments,andrelinedonceagain. A new master cast was created in the laboratory. The framework was used to create a bite registra- tion (Fig. 17). After defining the plane of occlusion, the tooth setup was made in the laboratory (Fig. 18). Before finalizing the removable prosthesis, the wax tooth setup was sent by the laboratory for the final clinical try-in (Fig. 19). To avoid a metallic grey shadow, the cobalt- chrome framework was treated with a pink opaque composite (Fig. 20) before processing the prosthesis in acrylic (Figs. 21 & 22). Figures 23 and 24 show the removable prosthesis after it was finalised and polished. The final palate-free restoration was inserted in the patient’s mouth (Figs. 26 & 27) and checked with an OPG (Fig. 25). _Conclusion Thetreatmentdescribedinthiscasewasdelivered beforetheATLANTISConusabutmentswereofficially introducedinthesummerof2014,andtheabutments were only available with a 4-degree angle. Duetotheperfectretentionwiththatangulation,the patienthadsomeproblemsremovingtheprosthesisfor cleaning.Therefore,adecisionwasmadetoremovetwo of the ATLANTIS Conus abutments (14 and 25) and seal thoseimplantswithgingivaformers.Thismadeiteasier for the patient to remove the prosthesis, but could still providethecomfortofafixedrestorationwhenchewing. To avoid this problem, the ATLANTIS Conus abut- mentsaretodayonlyavailablewitha5-degreeangle._ Fig.19_Toothsetupinwaxforthetry-in. Fig. 20_Acrylic teeth placed with compositeonapinkopaqueframework. Fig. 21_Prosthetic jig for acrylic pulverisation. Fig. 22_Processed prosthesis in acrylic on the model. Fig.23_Finalprosthesis,occlusalview. Fig. 24_Final prosthesis, basal view. Fig. 25_Panoramic radiograph with abutments and prosthesis in place. Fig. 26_Final prosthesis in situ, occlusal view. Fig. 27_Final prosthetic restoration. I 21CAD/CAM 3_2015 Dr Claudia Mrosek Folktandvården Södra Ryd, Skövde,Sweden Jan Stöckel,CDT Mariestads Dental, Mariestad,Sweden CAD/CAM_authors Fig. 27 Fig. 25 Fig. 26 Fig. 24Fig. 23