FUNCTIONAL REHABILITATION OF THE POSTERIOR MANDIBULAR REGION WITH SPLINTED METAL-CERAMIC CROWNS ON IMPLANTS: A CASE REPORT

Abstract

Splinted metal-ceramic crowns on implants in posterior regions represent a rehabilitative alternative capable of promoting improved occlusal load distribution, greater prosthetic stability, and biomechanical predictability of treatment. This case report presents the functional rehabilitation of the posterior mandibular region using splinted screw-retained metal-ceramic crowns supported by Morse taper implants. A 41-year-old female patient attended the Instituto Odontológico das Américas (IOA) clinic presenting four previously installed implants in the posterior mandibular region for prosthetic rehabilitation. Initially, clinical examination, periapical radiography, and evaluation of the interocclusal space were performed. The treatment involved an initial impression for provisional restorations fabrication, installation of mini-abutments, fabrication of splinted acrylic resin provisional crowns, and definitive impression using addition silicone in an open tray technique with splinted transfer copings to improve impression accuracy. Subsequently, the impression was poured with type IV dental stone for fabrication of the metallic framework, followed by clinical try-in, interocclusal record, and ceramic shade selection. After installation of the definitive metal-ceramic crowns, adequate prosthetic adaptation, mechanical stability, and restoration of masticatory function were observed, without clinical complications during follow-up. This case reinforces the predictability and effectiveness of splinted metal-ceramic crowns on implants for rehabilitation of the posterior mandibular region, especially in situations involving reduced interocclusal space and high functional demand.