Biological and Synthetic Materials in Mandibular Reconstruction

Materials for Mandibular Reconstruction: Biological vs Synthetic

Abstract

Mandibular reconstruction is a critical surgical procedure necessary for restoring both function and aesthetics following trauma, tumor resection, or congenital defects. Over time, a variety of biological and synthetic materials have been developed to address the challenges of reconstructing the complex anatomy of the mandible. Biological materials, such as autografts, offer superior biocompatibility and osteogenic potential, but are limited by donor site morbidity and graft availability. Allografts and xenografts provide more accessible alternatives but are associated with higher risks of immune rejection and slower integration. In contrast, synthetic materials like titanium, PEEK (polyether ether ketone), and hydroxyapatite provide excellent mechanical strength and durability but often lack osteoinductive properties, requiring surface modifications to improve tissue integration.
This review aims to provide a comprehensive analysis of the current materials used in mandibular reconstruction, comparing their biocompatibility, mechanical properties, osteoinductive potential, and clinical outcomes. Additionally, the review explores the growing role of composite materials that combine the strength of synthetics with the biological activity of natural tissues, as well as the advent of tissue engineering approaches that incorporate stem cell therapies and biomaterial scaffolds to promote bone regeneration. Emerging technologies such as 3D printing of custom-made implants and the application of nanotechnology for enhanced integration and infection control are also discussed as promising directions for future clinical applications. The findings highlight the need for continued research into optimizing biomaterial design and improving regenerative therapies to enhance patient-specific outcomes, reduce complications, and foster successful long-term integration of reconstructed mandibular structures. This review provides a roadmap for advancing both material science and clinical practice in the field of mandibular reconstruction.