The congenital absence of maxillary lateral incisors (MLIA) is a frequent condition that affects dental function and aesthetics, often requiring interdisciplinary treatment. This project aims to evaluate and improve digital planning protocols for the placement of orthodontic mini-implants and their prosthetic rehabilitation in growing patients. The study includes a retrospective analysis of previously placed implants using 3D models and CBCT to assess angulation accuracy. In the prospective phase, new cases will be digitally planned and treated using customized surgical guides, allowing for a precise comparison between planned and actual implant positions. The project also introduces an innovative technique for direct resin crown injection using a digitally designed mold, eliminating the need for cement. Mechanical tests will validate the retention, fit, and strength of the restorations. The goal is to develop safer, more accurate, and minimally invasive solutions for the rehabilitation of MLIA in young patients.