Digital conversion of interim to definitive complete arch implant-supported fixed prostheses using intermediate scanning technique with a laboratory screw: A clinical report

The accurate alignment of digital scan data is a critical step in providing a complete arch implant-supported prosthesis, mainly because of the lack of stable and repeatable reference points in edentulous arches. This limitation poses a significant challenge when attempting to align multiple surface geometry datasets precisely. This clinical report describes a practical and efficient procedure that enhanced the accuracy of digital dataset alignment and facilitated a fully digital workflow for the design, fabrication, and conversion of interim prostheses into definitive complete arch implant-supported prostheses.