Using Double-Crown Systems for Tooth-Implant Connection in Fixed and Removable Prostheses

A technique paper on double-crown systems and a case presentation is presented to describe the short-term outcomes of tooth-implant connections using double-crown systems. A 42-year-old man wearing an upper clasp-retained removable partial denture visited the department of prosthodontics at Greifswald University Polyclinic to enhance his chewing efficiency and appearance. The patient underwent a thorough evaluation encompassing medical, social, and systemic health assessments and comprehensive extraoral and intraoral examinations; esthetic analyses; and functional screening. Three prosthodontic treatment options were provided. The patient selected the tooth implant-supported, upper, gold-foil, double crown-retained, removable, partial denture (DCRPD) and lower fixed prostheses with a double-crown, tooth implant-supported bridge. The oral health-related quality of life (OHRQoL) and patient satisfaction were measured before treatment and after inserting the DCRPD and cementing the lower fixed prostheses. The patient reported improved retention, support, stability, chewing efficiency, esthetics, and OHRQoL. Measurements recorded after 1 year indicated that these improvements had been maintained. The outcomes in this case report are consistent with those of several long-term clinical studies and systematic reviews.