A digital workflow using a smartphone-based photogrammetry app for capturing implant positions in complete arch fixed implant-supported prostheses

Complete arch implant-supported restorations require the accurate digital acquisition of implant position, soft tissue anatomy, and interarch relationships. Traditional photogrammetry systems, while accurate, are often limited by cost, equipment complexity, and lack of portability. This manuscript describes a novel scanning workflow for fabricating implant-supported prostheses in which a smartphone-based photogrammetry system (PGAPP) was used to record implant positions. The photogrammetry file was aligned automatically with the intraoral soft tissue scan through the shared geometry of the scan bodies. The technique simplified data acquisition, increased clinical accessibility, and provided a cost-effective digital alternative for fabricating complete arch implant-supported prostheses in clinical practice.