Reconstruction of Complex Maxillary Defects Using Patient-specific 3D-printed Biodegradable Scaffolds

Area of Science:

• Craniomaxillofacial reconstruction
• Biomaterials engineering
• Tissue engineering

Background:

• Maxilla defect reconstruction is challenging due to autologous bone grafting limitations.
• Traditional methods involve prolonged surgery and difficulties in precise defect restoration.
• Cancer surgery often results in complex maxillary defects requiring advanced solutions.

Purpose of the Study:

• To evaluate the clinical feasibility and efficacy of patient-specific, 3D-printed biodegradable scaffolds for maxilla reconstruction.
• To assess the regenerative potential and stability of polycaprolactone (PCL) scaffolds in complex maxillary defects.
• To determine the impact of these scaffolds on facial morphology and patient outcomes.

Main Methods:

• Utilized computer-aided design and manufacturing (CAD/CAM) with 3D printing technology to create patient-specific polycaprolactone (PCL) scaffolds.
• Implanted customized PCL scaffolds into patients with complex maxillary defects post-cancer surgery.
• Conducted follow-up evaluations for up to 2 years, monitoring morphological changes and scaffold stability.

Main Results:

• Patient-specific 3D-printed PCL scaffolds effectively filled maxillary defects.
• Scaffolds promoted regeneration of deficient maxillary tissue.
• The implants demonstrated stability within the body for extended periods, improving facial morphology.

Conclusions:

• Customized, tissue-engineered scaffolds fabricated using 3D printing are safe and clinically feasible for maxilla reconstruction.
• This approach overcomes limitations of traditional bone grafting, offering improved and stable morphological outcomes.
• The technology provides a patient-specific solution for complex maxillofacial defects, enhancing quality of life.