期刊
JOURNAL OF BIOMATERIALS APPLICATIONS
卷 31, 期 6, 页码 799-806出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0885328216682672
关键词
Craniofacial implants; 3D printing; calcium phosphate cement
资金
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico, Brazil)
- FINEP (Financiadora de Estudos e Projetos, Brazil)
The 3D printing process is highlighted nowadays as a possibility to generate individual parts with complex geometries. Moreover, the development of 3D printing hardware, software and parameters permits the manufacture of parts that can be not only used as prototypes, but are also made from materials that are suitable for implantation. In this way, this study investigates the process involved in the production of patient-specific craniofacial implants using calcium phosphate cement, and its dimensional accuracy. The implants were previously generated in a computer-aided design environment based on the patient's tomographic data. The fabrication of the implants was carried out in a commercial 3D powder printing system using alfa-tricalcium phosphate powder and an aqueous solution of Na2HPO4 as a binder. The fit of the 3D printed implants was measured by three-dimensional laser scanning and by checking the right adjustment to the patient's anatomical biomodel. The printed parts presented a good degree of fitting and accuracy.
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