A novel predictable analogue workflow for passive full-arch implant prostheses

Achieving the passive fit of a long-span, fixed bridge onto multiple implants remains challenging despite advances in digital workflows. Errors during impression taking, model construction and framework fabrication may accumulate, resulting in mechanical and technical complications. This article describes a structured analogue workflow, incorporating the passive analogue impression technique (PAIT) jig. The philosophy, material considerations and step-by-step clinical and laboratory procedures are presented. Emphasis is placed on rigidity, control of composite polymerization shrinkage, dimensional expansion of plaster and systematic verification of passivity. When executed without shortcuts, the PAIT workflow provides a predictable and transparent pathway to achieving passivity in long-span implant bridges. CPD/Clinical Relevance: Clinicians must understand both the material science and the various verification techniques to minimize the potential misfit of the implant bridge.