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11 CASE STUDY Fig. 7: The remaining space between the alveolar bone and cortical shell was filled with particulate, autologous bone. Fig. 8: After three months, the bone bed was shown to be fully healed and well vascularized. Figs. 14 and 15: The soft tissue was anatomically shaped by successively building up the long-term temporaries (on the left at the start, on the right at the end of the shaping phase). Fig. 9: Two CAMLOG ® SCREW-LINE implants (Ø 3.8 mm) were inserted in the correct prosthetic position. Fig. 16: The radio-opaque flow composite to shape the emergence profile is clearly identifiable in the X-ray. Fig. 13: Temporary veneers were prefabricated in the laboratory and polymerized chairside onto two PEEK abutments. The postoperative period proceeded without complications. Surgical reentry and removal of the two osteosynthesis screws took place after three months. The bone bed was shown to be fully healed and well vascularized (Fig. 8) . Two CAMLOG ® SCREW-LINE implants with a diameter of 3.8 millimeters and a length of 11 millimeters were inserted (Figs. 9 and 10) . At this time, another subepithelial conductive tissue graft was harvested from the palate and inserted in order to have sufficient volume available for shaping the soft tissue as planned in the prosthetic phase. After healing again for three months without complications, the soft tissue had sufficient volume and stable keratinized gingiva (Fig. 11) . Prosthetic phase The implants could then be exposed. A crestal incision with a full flap was chosen and firstly “bottleneck” healing caps were used to ensure good adap- tion of the flap margins in the papilla area. The sutures were removed after a week. Cylindrical healing caps were now used to shape the tissue further. After a healing phase of around two weeks, the gingiva was sufficiently developed to start with the prosthetic phase (Fig. 12) . A temporary veneer was prefabricated in the laboratory and was polymerized chairside onto two temporary PEEK abut- ments. The soft tissue was now shaped in several treatment sessions by succes- sively building up the emergence profile on the long-term temporaries with flow composite (Figs. 13 – 16) . A period of six months was planned for the full matura- tion of the soft tissue. Figure 17 shows the gingival situation at the beginning of the final prosthetic phase. The keratinized gingiva was stable and free of inflammation. It was now essential to transfer the shaped emer- gence profile precisely to the model situation. This is not possible with conven- tional impression posts, as the gingiva collapses within minutes i.e. during the curing time of the impression material, due to the pull of elastic fibers in the sulcus. There are two techniques for transferring the emergence profile to the model: either a pick-up impression of the tempo- rary in the sense of a closed impression or an open impression technique with individualized impression posts. Figures 18 – 22 show the fabrication of such individualized impression posts. The emergence profile was transferred to the impression posts using self-curing resin and then impression-taking with the open technique (Fig. 23) . After pouring the impression and fabrication of a removable gingival mask, the master model was finished as an exact replica of the intraoral situation (Fig. 24) . The final restoration was all-ceramic with individual zirconium dioxide abutments and individually veneered zirconium dioxide crowns. As various studies [13,14] show, zirconium dioxide excels by virtue of its outstanding biocompatibility and tremendous strength. In order to guarantee the maximum assurance in the implant-abutment connection, the individual zirconium dioxide abutment was bonded with a CAMLOG ® Titanium base CAD/CAM. To ensure the correct anatomical design of the individual abutment, firstly a precise wax-up is created on the master
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