"Clinical Evaluation of Retraction Cord Effectiveness Using Intraoral Scanner

Dental-supported fixed partial dentures (FPDs) have long been a commonly preferred treatment method for the rehabilitation of teeth with excessive substance loss and for addressing existing tooth deficiencies. Crucial factor affecting the success and quality of FPDs is the marginal fit of the restoration. Marginal discrepancy refers to the vertical or horizontal gap between the restoration finish line and the preparation finish line. To achieve high marginal fit restorations, gingival retraction techniques are used with the aim of removing the marginal gingiva away from the finish line. Retraction cords are commonly used for this purpose nowadays. The aim of the study is to evaluate the effect of retraction cords on the preparation finish line and the marginal fit of produced restorations using direct digital measurement methods.