IN-OFFICE EXTRAORAL CUSTOM ABUTMENT FABRICATION
When significant abutment customization is needed, it is easier to create the abutment extraorally versus attempting to do so intraorally. This is especially true if a milling abutment is going to be used, as these require more metal be removed. The process starts with an implant impression and fabrication of a soft-tissue model. To fabricate a soft-tissue model in the office, place the analog on the impression head within the impression and inject Soft-Tissue Moulage (Kerr Lab) 3 mm around the analog’s crestal and allow to set. A stone model is then poured and models are articulated (Figure 3).
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Figure 3. Occlusal view of the stock titanium abutments showing nonparallelism. |
Figure 4. Anterior view of the stock abutments on the soft-tissue model showing nonparallelism. |
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Figure 5. The abutments are reduced using the cross-cut carbides to indicate the gingival margin and parallelism. |
Figure 6. Soft-tissue removed, casts occluded to check occlusal reduction and margins have been refined. |
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Figure 7. Occlusal view showing parallelism of the abutments with circumferential margins. |
Figure 8. View of the abutments showing parallelism. |
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| Figure 9. Occluded view of the finished custom abutments. |
Figure 10. Buccal view of the finished abutment heads. |
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Figure 11. Lingual view of the finished abutment heads. |
Figure 12. Occlusal view of the finished abutment heads showing circumferential margins. |
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Figure 13. Intraoral buccal view of the custom abutments. |
Figure 14. Intraoral lingual view of the custom abutments. |