Evaluation of Functional Suitable Digital Complete Denture System

Objectives: To improve the clinical effects of complete denture use and simplify its clinical application using a functional suitable digital complete denture system (FSD). We aimed to formulate a digital complete denture restoration workflow and evaluate its clinical utility.
Methods: Twenty edentulous patients were enrolled at their first visit, during which primary impressions and jaw relation scan records were obtained. A diagnostic denture was designed and printed based on these impressions and jaw relation records. At the second visit, printed diagnostic dentures, in combination with jaw relation records and aesthetic considerations, were used to create a definitive impression. Complete dentures were designed based on data from closed-mouth impressions and printed to obtain patterns for fabrication of complete dentures using traditional laboratory methods. At the third visit, dentures were given to patients. The impressions made by diagnostic dentures were evaluated by the impressions made by dentures via 3D deviation commands in reverse engineering software. Visual Analogue Scores (VAS) were determined by both dentists and patients.
Results: The number of visits reduced two times before denture insertion. Our analysis of impression precision revealed that 3D deviations in RMS values between the impression made via diagnostic dentures and the final dentures were 0.165±0.034 mm in the upper jaw and 0.138±0.033 mm in the lower jaw. VAS ratings were between 8.5 and 9.8.
Conclusions: FSD can simplify the complete denture restoration process, reduce the number of visits, and improve denture fitness.