Ovoid Emergence Profile Implant Restoration Design for Stabilization and Improvement of Peri-Implant Soft Tissue: Case Series and Technical Report

Abstract This case series evaluated the peri-implant soft tissue improvement with an ovoid emergence profile implant restoration design on internal conical connection dental implants. An extrapolished zirconia monolithic 360 degrees ovoid design critical contour, like 'lollipop', with a similar cement-enamel junction (CEJ) of replaced tooth, was used on an original titanium abutment, CAD/CAM abutment (TiBase), or multi-unit abutment, with a minimum height of 3mm and a concave design, to improve an optimal implant-supported restoration emergence profile that can stimulate peri-implant soft tissues due to the pressure and suction that generate a mechano-transduction response of soft tissue cells. Nine cases were rehabilitated using a full digital workflow and an ovoid emergence profile design, with follow-up at 6 months. A visual comparison was made between the placement photographs and the follow-up appointment photographs to assess the changes in peri-implant soft tissues over each period. In all cases, a visual soft tissue improvement can be appreciated, which seems to be an increase in soft tissue volume and the creation of new papillae. Within the limitations of this case series, it can be concluded that the ovoid emergence profile restoration design can improve peri-implant soft tissue without the need for temporary restorations or peri-implant mucogingival surgery.