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J.-A. Schönherr, R. Gmeiner, A. R. Boccaccini, J. Stampfl:
"Lithography-based Additive Manufacturing of High Strength Bioactive Glass and Glass Ceramics for Medical Applications";
Poster: EURO BioMAT 2015, Weimar; 04-21-2015 - 04-22-2015.

Additive manufacturing technologies make it possible to generate complex geometrical geometries that can obtain common material properties. This technology enables an easy to use system with fast buildspeeds
and reduced costs. Using a liquid and photosensitive organic binder material filled with ceramic powder, it is possible to manufacture high density ceramic parts. We used stereolithographic ceramic
manufacturing technologies (SLCM) to process glass ceramics and bioactive glass e.g. 45S5 Bioglass formular. Both materials have a high potential to be used in clinical applications such as bone substitutes or
scaffold materials. Recent studies show positive results with respect to biocompatibility and degradability. However there are insufficient mechanical property studies. Using SLCM, it is possible to produce solid
bulk glass ceramics as well as delicate scaffold structures with a very homogenous microstructure and densities of about 2,7g/cm3. Furthermore a biaxial bending strength of 124MPa could be reached. A Weibull
modulus of 8,6 shows good process control and a characteristic strength of 131 MPa could be reached on the tested samples. Our mechanical property results compliment previous studies showing that all in all
bioactive glasses processed with SLCM could be a good bone substitute material even in load bearing applications.