Emergence Contours for Single-Unit Implant Provisionals in the Esthetic Zone

The emergence contour of a provisional implant restoration is the key link between the implant and the crown. Its size and shape play a significant role in the treatment outcome biologically, functionally, and esthetically. Generally, for single-unit implants in the esthetic zone, the emergence contour should be narrow and smooth and allow space for biologic graft materials, native tissues, blood clot, and swelling, while maintaining distance from the surrounding bone. The "critical contour" area (near the gingival margin) should support but not compress the soft tissues. It should leave space for the gingival margin and papilla to migrate coronally during the healing and maturation stages. A properly designed and fabricated emergence contour of the provisional restoration will increase the potential for a successful outcome.