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Updated: Jul 10, 2026
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3D Planning and Printing of Patient Specific Implants for Reconstruction of Bony Defects
Published on: August 4, 2020
Individually Prefabricated Prosthesis for Maxilla Reconstuction
Sekou Singare1, Yaxiong Liu, Dichen Li
1Key Laboratory of Biomedical Information Engineering of the Minestry of Education, and Institute of Biomedical Engineering, Xi'an Jiaotong University, Xi'an, China. sekou2d@yahoo.com
Summary
Custom-made prostheses fabricated using rapid prototyping and reverse engineering improve maxillofacial defect reconstruction predictability. This advanced manufacturing reduces surgical time and enhances patient outcomes in complex cases.
Area of Science:
- Biomedical Engineering
- Oral and Maxillofacial Surgery
Background:
- Intraoperative implant modeling for maxillofacial defects can compromise aesthetic outcomes and increase surgical complexity.
- Traditional methods often lead to extended surgical times and less predictable results.
Observation:
- Modern manufacturing techniques, including rapid prototyping (RP) and reverse engineering (RE), offer solutions for creating custom-made maxillary prostheses.
- Utilizing medical imaging data, 3D models of bony defects are generated for precise prosthesis design.
Findings:
- Computer-aided design (CAD) models are transferred to RP machines for physical model production.
- The pre-fabricated prostheses ensure a precise fit, evaluated against skull models.
- These custom prostheses are directly used in investment casting to produce titanium implants, significantly reducing intraoperative adjustments and surgical duration.
Implications:
- Prefabricated custom prostheses using RP and RE are effective for maxillofacial defect reconstruction.
- This approach enhances surgical predictability, reduces operative time, and improves aesthetic results.
- The integration of advanced manufacturing technologies revolutionizes the treatment of complex craniofacial reconstructions.
