Redesigning Existing Provisional Restorations While Maintaining Established Transmucosal Anatomy in a Multi-Implant System/Natural Tooth, Full-Arch Case.

Redesigning existing provisional restorations when a combination of two different implant systems and natural teeth exist in the same arch can be challenging. Problems such as acrylic locking into undercuts and loss of spatial landmarks both subgingivally and supragingivally are common concerns for the practitioner. Two techniques, presented herein, offer treatment options to retain the previously developed transmucosal anatomies of implant-level provisional abutments while allowing for redesign of the clinical crown component of the same long-term provisional restorations. By modifying only the supragingival aspect of the provisional prosthesis, the previously developed transmucosal areas remain intact. Use of a segmented matrix from an approved wax-up offers greater control versus a single matrix of the entire arch.