Digital Technology Used In Rehabilitation Of Maxillary Defects

To explore the course for a digital maxillofacial prosthesis system, aiming to improve clinical treatment for patients with maxillary defects. The patient with maxillary defects were selected from clinic. After signing informed consent, the patient’s anatomy was scanned using spiral CT. 3D models were reconstructed and modified. In reverse engineering software, the prosthesis was designed with finishing lines at a specific distance from the defect margins, a palatal surface simulation, and a hollow structure for volume reduction. The final defect obturator was created and integrated with an intermediate connection device designed using forward engineering software. Female molds were designed based on 3D data, fabricated via 3D printing, and used to produce the silicone obturator. The maxillary impression was taken with the obturator in place to prevent nasal cavity contamination. A removable partial denture with a connection device was fabricated, completing the prosthesis. This method successfully treated 10 patients with various maxillary defects. All patients reported no discomfort and were satisfied with the prosthesis’ adaptation, shape, retention, and stability. This new digital approach represents an innovative and superior treatment option for maxillary defect patients, offering significant clinical advantages over traditional methods.