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Determination of fluid leakages in the different screw-retained implant-abutment connections in a mechanical artificial mouth

  • Clinical Applications of Biomaterials
  • Original Research
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Abstract

This study shows the potential risk of microfiltration between two different types of implant-abutment connections screwed at 45 Ncm: external and internal. For the first time the use of a mechanical artificial mouth is used with the values (compression and torsion loads with a frequency of 2 Hz) of the human chewing. The mechanical tests were performed with an artificial saliva at 37 °C. The microgap in the connection was measured by an Image Analysis software incorporated in a high resolution scanning electron microscopy. Implant connections were filled with methylene blue by using self-adjustable precision pipettes and the quantity of leakage was determined by high sensitivity spectometry. We showed that the internal connection has lower microgaps compared to the external ones and these microgaps increased with the number of mechanical cycles. The leakage of methylene blue was higher when the external connection was performed. Microgaps and the influence of the mechanical loads are very important for the long-term behavior avoiding the bacteria colonization in the dental implants. These aspects should be known by the implantologists.

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Acknowledgments

This work was supported by CICYT Spanish project MAT-2012-30706 and the Andorra and Catalan Government for CTP grants. The authors are grateful to Soadco® for your support.

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Authors and Affiliations

  1. Faculty of Dentistry, Universitat Internacional de Catalunya, Sant Cugat Campus, Barcelona, Spain

    D. Martin-Gili & Ll. Giner

  2. Biomaterials, Biomechanics and Tissue Engineering Group, Department Materials Science and Metallurgical Engineering, ETSEIB, Technical University of Catalonia (UPC), Av. Diagonal 647, 08028, Barcelona, Spain

    M. Molmeneu, M. Fernandez, M. Punset & F. Javier Gil

  3. Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain

    M. Molmeneu, M. Fernandez, M. Punset & F. Javier Gil

  4. School of Architecture, Universitat International de Catalunya, Barcelona Campus, Barcelona, Spain

    J. Armengou

Authors
  1. D. Martin-Gili
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  2. M. Molmeneu
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  3. M. Fernandez
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  4. M. Punset
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  5. Ll. Giner
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  7. F. Javier Gil
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Correspondence to F. Javier Gil.

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The authors have not financial relationship with the organization that sponsored the research. The authors have full control of all primary data and that they agree to allow the journal to review their data if requested.

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Martin-Gili, D., Molmeneu, M., Fernandez, M. et al. Determination of fluid leakages in the different screw-retained implant-abutment connections in a mechanical artificial mouth. J Mater Sci: Mater Med 26, 211 (2015). https://doi.org/10.1007/s10856-015-5544-x

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  • DOI: https://doi.org/10.1007/s10856-015-5544-x

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