Reabilitação implanto-suportada bimaxilar de arco total utilizando fluxo digital com marcadores de posição: relato de caso

Abstract

Statement of the Problem: Rehabilitation of edentulous patients with full-arch implantsupported prostheses using full-arch intraoral scanning presents significant challenges due to the lack of anatomical references, which complicates the accuracy of digital planning and prosthetic fabrication. Purpose: This case report aims to describe a digital approach employing positioning markers, 3D-printed and fixed to the mucosa, to address scanning difficulties in a bimaxillary full-arch implant rehabilitation. Materials and Methods: In this clinical case, intraoral scans of the maxilla and mandible were performed with positioning markers affixed to the mucosa, ensuring their presence in both the dental and abutment transfer post scans. The markers were designed using Meshmixer software and 3D-printed with biocompatible resin. Following scanning, STL files were generated for virtual planning (CAD), ensuring precise arch alignment and prosthetic adaptation. Prosthetic structures were subsequently fabricated using computer-aided manufacturing (CAM) and clinically assessed. Results: The results demonstrated a streamlined workflow, reduced overall treatment time, and excellent clinical fit of the prostheses, with superior marginal adaptation and stability. Patient comfort was significantly enhanced due to the efficient and comfortable impression process. Conclusions: The use of 3Dprinted positioning markers combined with intraoral scanning provides an effective solution to the challenges of full-arch implant-supported rehabilitation. This technique facilitates a digital workflow for fully edentulous patients, reduces treatment time, and ensures precise prosthetic adaptation, ultimately contributing to more predictable and comfortable treatment outcomes. Clinical implication: The use of 3D-printed positioning markers with intraoral scanning improves the accuracy and efficiency of full-arch implant-supported prosthesis rehabilitation. This approach enhances prosthetic fit, reduces treatment time, and increases patient comfort, offering a reliable and predictable solution for edentulous patients.