Patient and population (P) All adult patients (> 18 years) with a missing or non-restorable anterior tooth requiring delayed or immediate implant treatment.
Intervention (I) Installation of an implant with a scalloped implant-abutment connection.
Comparator or control group (C) A flat implant-abutment design
Outcomes (O) Survival of suprastructures, survival of implants, clinical soft tissue measurements, peri-implant marginal bone level, professional and patient-reported outcome measures.
Study design (S) Human studies, including randomized controlled trials and controlled clinical trials, with the aim of comparing the final implant treatment outcome after installation of implants with an anatomically designed scalloped implant-abutment connection compared to a flat implant-abutment design.
Focused question Are there any differences in the final implant treatment outcome after installation of oral implants with scalloped implant-abutment connection compared to a flat implant-abutment design?