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ePaper created 2015-09-09, 12:07:54 | version 1.38.0
I case report _ treatment of edentulous maxilla suturing(Fig.3).Directlyaftersurgery,thepatientwas provided with the relined temporary denture. The healing phase was free of complications. Twelve weeks after implant placement, the second- stage surgery was performed. A small incision was made at each implant and due to this minimally invasive approach, the cover screws could be replaced by gingiva formers without the need for any suturing (Fig. 4). _Prosthetic treatment Impressions were taken two weeks after the second-stage surgery. The gingiva formers were exchanged for transfer posts, and a closed-tray im- pression (Fig. 5) taken with an individual tray and polyether impression material was taken (Fig.6).Inthedentallaboratory, the cast model was scanned, and 4-degree-angled conical abutments were designed using ATLANTIS VAD software (DENTSPLY Implants) (Fig. 7). The final abutment designs weresentdigitallytoDENTSPLY Implants in Mölndal, Sweden, where the six ATLANTIS Conus abutments were produced (Fig. 8). To connect the abutments to the bridge framework, prefabricated tapered ANKYLOS SynCone Caps were used on top of the ATLANTIS Conus abutments (Figs. 9 & 10). To achieve precise fitting in the mouth, the lab- oratory provided transfer keys made from light cur- ing composite to connect the ATLANTIS Conus abutments to each other (Fig. 11). In the next step, the gingiva formers were replaced by the six ATLANTIS Conus abutments with the help of the trans- fer keys. The abutments were torqued to the implants with 15 Ncm (Fig. 12). After test for perfect fit of the SynCone Caps andframeworkinthemouth,the SynCone Caps were cemented to the cobalt-chrome frame- work intraorally using dual- hardeningcement(Figs.13&14). This part of the treatment was essential to assure perfect fit; carefullyfollowingtheinstruc- tions for mixing the cement is highly recommended. After the cement had cured completely,thefitoftheframe- work, including the SynCone Fig. 15_SynCone caps in place with the framework. Fig. 16_Impression picking up the caps and framework together. Fig. 17_Bite registration. Fig. 18_Tooth setup in the laboratory. 20 I CAD/CAM 3_2015 Fig. 17 Fig. 18 Fig. 15 Fig. 16 Fig. 21 Fig. 22 Fig. 19 Fig. 20