Digital Occlusal-Aesthetic Reconstruction In Dentinogenesis Imperfecta Type II

Dentinogenesis imperfecta type II (DGI-II) is a hereditary dental disorder characterized by severe attrition, enamel hypoplasia, and dentin exposure, leading to significant aesthetic and functional impairments. This study investigates a comprehensive digitally-assisted approach to occlusal and aesthetic reconstruction, with a focus on the target restoration space (TRS) and the strategic selection of color-guiding materials. A 30-year-old female was diagnosed with DGI-II based on clinical and genetic assessments. Key manifestations included severe dental wear, enamel hypoplasia, dentin exposure, and mandibular counterclockwise rotation. Treatment involved a multi-phase occlusal reconstruction, incorporating oral preparation, jaw position optimization, provisional and definitive restorations, and follow-up. Digital tools, including intraoral scanning and 3D facial reconstruction, enhanced precision. Due to the absence of enamel, zirconia crowns were selected for both anterior and posterior teeth to achieve the color transition from 5M2 to 2M2 within the target restoration space. This study highlights the role of digital technology in enhancing treatment accuracy for DGI-II. The application of zirconia crowns effectively restored both function and aesthetics in the absence of enamel, while computer-assisted techniques significantly enhanced the accuracy of occlusion transfer, impression registration and color selection. Occlusal reconstruction with full-coverage crowns is an effective strategy for managing DGI-II, significantly improving aesthetics, function, and occlusal stability. Digital tools enhance treatment precision, demonstrating their value in prosthetic dentistry.