Manufacturing methods of bioceramic scaffolds
Résumé
For many years, bone substitutes have been made from calcium phosphate powders because of their excellent biological properties. Different methods are used to manufacture scaffolds with a porous architecture that aims to approximate the natural bone skeleton.
Several fabrication methods for preparation of porous ceramic have been developed in the laboratory such as the addition of sacrificial PMMA porogens, freeze casting and additive manufacturing methods. The physical characteristics of the porous scaffolds obtained by these different techniques and the biological responses will be presented and compared.
Finally, an original process combining microwave-assisted thermal treatment and an additive manufacturing technique allowing the rapid fabrication of customized bioceramics will be presented.