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dc.contributor.authorMartin Gili, D.
dc.contributor.authorMolmeneu Trias, Meritxell
dc.contributor.authorFernández Yagüe, Marc-Antoni
dc.contributor.authorPunset Fuste, Miquel
dc.contributor.authorGiner, Li
dc.contributor.authorArmengou, Jaume
dc.contributor.authorGil Mur, Francisco Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationMartin, D., Molmeneu, M., Fernandez, M., Punset, M., Giner, L., Armengou, J., Gil, F.J. Determination of fluid leakages in the different screw-retained implant-abutment connections in a mechanical artificial mouth. "Journal of materials science. Materials in medicine", 01 Juliol 2015, vol. 26, núm. 7.
dc.description.abstractThis 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 degrees 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.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshDental Implants
dc.subject.otherIn-vitro evaluation
dc.subject.otherosseointegrated implants
dc.subject.othertitanium implants
dc.titleDetermination of fluid leakages in the different screw-retained implant-abutment connections in a mechanical artificial mouth
dc.subject.lemacImplants dentals
dc.contributor.groupUniversitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author’s final draft)
local.citation.authorMartin, D.; Molmeneu, M.; Fernandez, M.; Punset, M.; Giner, L.; Armengou, J.; Gil, F.J.
local.citation.publicationNameJournal of materials science. Materials in medicine

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