Use of Digital Technology to Fabricate a Metal-Based Maxillofacial Prosthesis for Mandibular Defects

Area of Science:

• Biomaterials Science
• Dental Technology
• Prosthodontics

Background:

• Conventional impression techniques pose challenges for maxillofacial prostheses due to complex patient anatomy and morphology.
• Multiple adjustments are often required post-fabrication, increasing complexity and time.

Purpose of the Study:

• To describe a novel combined conventional and digital workflow for fabricating maxillofacial prostheses.
• To evaluate the efficacy of intraoral scanning and 3D printing in improving prosthesis fit and clinical outcomes.

Main Methods:

• Utilized intraoral scanning to capture 3D data of the interim prosthesis and oral cavity in a patient with a mandibular defect.
• Employed 3D printing with acrylic to create an occlusal record base from the scanned data.
• Combined digital design and wax pattern fabrication with conventional metal casting for the framework.

Main Results:

• A digitally fabricated maxillofacial prosthesis demonstrated an acceptable fit.
• The new prosthesis achieved a satisfactory clinical outcome for the patient.
• The workflow proved effective in managing complex anatomical structures.

Conclusions:

• Intraoral scanning and 3D printing offer viable alternatives to traditional impression and casting methods for maxillofacial prostheses.
• This combined workflow enhances the fabrication process for patients with complex anatomical needs.
• Digital technologies improve the precision and clinical success of maxillofacial restorations.