Emergence Angle and Emergence Profile in Implant-Supported Restorations: A Scoping Review

Background/Objectives: Prosthodontic restoration design plays a key role in the long-term success of implant-supported treatments and in maintaining peri-implant tissue health. Inadequate emergence angles and profiles can compromise tissue stability and negatively influence clinical outcomes. Generative design, as an algorithm-driven optimization approach, requires the definition of key parameters in advance to guide the process and determine the final shape of the hybrid implant abutment. Methods: A detailed literature review of the PubMed and Scopus databases was performed to find appropriate studies published up to 1 December 2025. Studies that investigated the emergence angle and emergence profile of implant-supported restorations were included. Seventeen studies fulfilled criteria and were included in the final analysis. Results: While the optimal emergence angle is still debatable, the literature suggests that an angle less than 30° may be beneficial. However, a concave emergence profile of implant-supported restoration has a significant role in improving stability and maintaining peri-implant health. Conclusions: Careful characterization and evaluation of the included parameters provide useful insights for generative design workflows, enabling the creation of implant abutment designs that maintain a balance between mechanical performance and biological compatibility.