MATEC Web of Conferences (Jan 2020)

3D-Printed Composite Bone Bricks For Large Bone Tissue Applications

  • Daskalakis Evangelos,
  • Liu Fengyuan,
  • Acar Anil A.,
  • Dinea Edera-Elena,
  • Cooper Glen,
  • Weightman Andrew,
  • Koç Bahattin,
  • Blunn Gordon,
  • Jorge Bártolo Paulo

DOI
https://doi.org/10.1051/matecconf/202031801009
Journal volume & issue
Vol. 318
p. 01009

Abstract

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This study investigates the use of low cost, customizable, biodegradable, polymer-ceramic composite porous structures (bone bricks) for large bone tissue regeneration. Different ceramic materials (hydroxyapatite (HA), β-tri-calcium phosphate (TCP) and Bioglass (45S5) were mixed with poly-ε-caprolactone (PCL). Bone bricks with different material compositions were produced using an extrusion-based additive manufacturing system. Produced bone bricks were morphologically and mechanically assessed. Results allowed to establish a correlation between scaffolds architecture and material composition and scaffolds performance. Reinforced scaffolds showed improved mechanical properties. Best mechanical properties were obtained with PCL/TCP bone bricks and topologies based on 38 double zig zag filaments and 14 spirals.