Clinical Research Directory

Buccal Prosthetic Contour Angles and Peri-Implant Tissue Changes Around Dental Implants

This retrospective observational study aims to evaluate the association between buccal prosthetic profile angles at different supraplatform zones and peri-implant tissue changes around bone-level dental implants restored with customized abutments and crowns. The main questions it aims to answer are: Whether prosthetic profile angles within different vertical zones above the implant platform (0-2 mm and 2-4 mm) demonstrate different associations with marginal bone level changes around dental implants. Whether buccal prosthetic contour angles at different supraplatform depths are associated with peri-implant soft tissue conditions, including keratinized tissue width and mucosal changes. Whether peri-implant phenotype-related factors, including mucosal tunnel depth, soft tissue thickness, and buccal bone thickness, are associated with peri-implant tissue remodeling. Researchers will retrospectively analyze clinical records, intraoral photographs, radiographic images, and cone-beam computed tomography (CBCT) scans collected during routine implant treatment and follow-up care up to 1 year after prosthetic loading. Buccal prosthetic contour angles will be measured at different vertical zones above the implant platform to evaluate the biologic influence of contour configuration at different peri-implant tissue levels.