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Development of new titanium implants with longitudinal gradient porosity by space-holder technique

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Abstract

Bone replacement with conventional biomaterials entails a biomechanical incompatibility with respect to highly specialized and anisotropic bone tissue; stiffness mismatch is the most important example of that event, and it is always present in the components of all prosthetic systems for dental and joint replacements. In the case of titanium implants used for those biomedical applications, the main consequence of that mismatch is the bone resorption around the implants due to stress shielding with respect to bone. Bio-inspired design frameworks have opened a broad field of possibilities for new approaches to the stress-shielding phenomenon in bone replacements systems. To that end, conventional and non-conventional powder metallurgy have emerged as the feasible processing techniques for producing porous samples, which can match both complexity and anisotropy of bone tissue. Complete dental restoration is a good example of biomechanical systems with an important change of longitudinal stiffness once the components are implanted; therefore, development of new prosthetics systems with graded porosity for continuous Young’s modulus change is required. Samples with longitudinal graded porosity (symmetric and non-symmetric) by space-holder technique were developed, fabricated, and characterized in this work. Main findings indicated that the experimental procedure for space-holder elimination was effective, feasible, and reproducible, with better results for a compaction pressure of 800 MPa with low global NaCl content. Three-layer design (30/40/50) allowed stress shielding to be reduced without any important effect on mechanical strength with respect to the cortical bone.

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References

  1. Currey J (1998) In: Black JH, Garth (eds) Handbook of Biomaterials Properties. Springer, London

    Google Scholar 

  2. Gibson LJ, Ashby MF (1997) Cellular Solids: Structure and Properties, 2nd edn. University Press, Cambridge

    Google Scholar 

  3. Yuhua L, Chao Y, Haidong Z, Shengguan Q, Xiaoqiang L, Yuanyuan L (2014) New developments of Ti-based alloys for biomedical applications (review). Materials 7:1709–1800

    Article  Google Scholar 

  4. Oh IH, Nomura N, Hanada S (2002) Microstructures and mechanical properties of porous titanium compacts prepared by powder sintering. Mater Trans 43:443–446

    Article  Google Scholar 

  5. Liang-jian CHEN, Ting LI, Yi-min LI, Hao HE, You-hua HU (2009) Porous titanium implants fabricated by metal injection molding. Trans Nonferrous Met Soc China 19:1174–1179

    Article  Google Scholar 

  6. Li JC, Dunand DC (2011) Mechanical properties of directionally freeze-cast titanium foams. Acta Mater 59:146–158

    Article  Google Scholar 

  7. Ibrahim A, Zhang F, Otterstein E, Burkel E (2011) Processing of porous Ti and Ti5Mn foams by spark plasma sintering. Mater Des 32:146–153

    Article  Google Scholar 

  8. Xiong JY, Li YC, Wang XJ, Hodgson PD, Wen CE (2008) Titanium–nickel shape memory alloy foams for bone tissue engineering. J Mech Behav Biomed Mater 1:269–273

    Article  Google Scholar 

  9. Esen Z, Bor S (2011) Characterization of Ti–6Al–4 V alloy foams synthesized by space holder technique. Mater Sci Eng A 528:3200–3209

    Article  Google Scholar 

  10. Zhao X, Sun H, Lan L, Huang J, Zhang H, Wang Y (2009) Pore structures of high-porosity NiTi alloys made from elemental powders with NaCl temporary space-holders. Mater Lett 63:2402–2404

    Article  Google Scholar 

  11. Niu W, Bai C, Qiu G, Wang Q (2009) Processing and properties of porous titanium using space holder technique. Mater Sci Eng A 506:148–151

    Article  Google Scholar 

  12. Miao X, Sun D (2010) Graded/gradient porous biomaterials. Materials 3:26–47

    Article  Google Scholar 

  13. Kato K, Ochiai S, Yamamoto A, Daigo Y, Honma K, Matano S, Omor K (2013) Novel multilayer Ti foam with cortical bone strength and cytocompatibility. Acta Biomater 9:5802–5809

    Article  Google Scholar 

  14. Banhart J (2001) Manufacture, characterisation and application of cellular metals and metal foams. Prog Mater Sci 46:559–632

    Article  Google Scholar 

  15. Torres Y, Pavón JJ, Nieto I, Rodríguez JA (2011) Conventional powder metallurgy process and characterization of porous titanium for biomedical applications. Metall Mater Trans B 42B:891–900

    Article  Google Scholar 

  16. Torres Y, Pavón JJ, Rodríguez JA (2012) Processing and characterization of porous titanium for implants by using NaCl as space holder. J Mater Process Technol 212:1061–1069

    Article  Google Scholar 

  17. Torres Y, Rodríguez JA, Arias S, Echeverry M, Robledo S, Amigo V, Pavón JJ (2012) Processing, characterization and biological testing of porous titanium obtained by space-holder technique. J Mater Sci 47(18):6565–6576. doi:10.1007/s10853-012-6586-9

    Article  Google Scholar 

  18. Torres Y, Trueba P, Pavón JJ, Montealegre I, Rodríguez JA (2014) Designing, processing and characterisation of titanium cylinders with graded porosity: an alternative to stress-shielding solutions. Mater Des 63:316–324

    Article  Google Scholar 

  19. ASTM F67-13 (2013) Standard specification for unalloyed titanium, for surgical implant applications (UNS R50250, UNS R50400, UNS R50550, UNS R50700)

  20. ASTM E9-89a (2000) Standard test methods of compression testing of metallic materials at room temperature

  21. ASTM C373-14 (2014) Standard test method for water absorption, bulk density, apparent porosity, and apparent specific gravity of fired whiteware products, ceramic tiles, and glass tiles

  22. Traini T, Mangano C, Sammons RL, Mangano F, Macchi A, Piattelli A (2008) Direct laser metal sintering as a new approach to fabrication of an isoelastic functionally graded material for manufacture of porous titanium dental implants. Dent Mater 24:1525–1533

    Article  Google Scholar 

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Acknowledgements

This work was supported by the Ministerio de Ciencia y Tecnología, MICINN (Spain) through the Project Ref. MAT2010-20855 and the Junta de Andalucía-FEDER (Spain) through the Project Ref. P12-TEP-1401. Furthermore, the authors wish to thank the students M. Sevilla and J.A. Ramos as well as the laboratory technicians J. Pinto and M. Sánchez for their assistance in microstructure characterization and mechanical testing.

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Authors and Affiliations

  1. Group of Advanced Biomaterials and Regenerative Medicine, BAMR, Bioengineering Program, University of Antioquia, Medellín, Colombia

    J. J. Pavón

  2. Department of Engineering and Materials Science and Transportation, School of Engineering, University of Seville, Seville, Spain

    P. Trueba, J. A. Rodríguez-Ortiz & Y. Torres

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  1. J. J. Pavón
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  2. P. Trueba
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  3. J. A. Rodríguez-Ortiz
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  4. Y. Torres
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Correspondence to Y. Torres.

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Pavón, J.J., Trueba, P., Rodríguez-Ortiz, J.A. et al. Development of new titanium implants with longitudinal gradient porosity by space-holder technique. J Mater Sci 50, 6103–6112 (2015). https://doi.org/10.1007/s10853-015-9163-1

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  • DOI: https://doi.org/10.1007/s10853-015-9163-1

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