Mechanical in vitro fatigue testing of implant materials and components using advanced characterization techniques

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dc.contributor.authorWegner, Nils
dc.contributor.authorKlein, Martin
dc.contributor.authorScholz, Ronja
dc.contributor.authorKotzem, Daniel
dc.contributor.authorMacias Barrientos, Marina
dc.contributor.authorWalther, Frank
dc.date.accessioned2024-03-04T13:11:56Z
dc.date.available2024-03-04T13:11:56Z
dc.date.issued2021-11-30
dc.description.abstractImplants of different material classes have been used for the reconstruction of damaged hard and soft tissue for decades. The aim is to increase and subsequently maintain the patient's quality of life through implantation. In service, most implants are subjected to cyclic loading, which must be taken particularly into consideration, since the fatigue strength is far below the yield and tensile strength. Inaccurate estimation of the structural strength of implants due to the consideration of yield or tensile strength leads to a miscalculation of the implant's fatigue strength and lifetime, and therefore, to its unexpected early fatigue failure. Thus, fatigue failure of an implant based on overestimated performance capability represents acute danger to human health. The determination of fatigue strength by corresponding tests investigating various stress amplitudes is time-consuming and cost-intensive. This study summarizes four investigation series on the fatigue behavior of different implant materials and components, following a standard and an in vitro short-time testing procedure, which evaluates the material reaction in one enhanced test set-up. The test set-up and the applied characterization methods were adapted to the respective application of the implant with the aim to simulate the surrounding of the human body with laboratory in vitro tests only. It could be shown that by using the short-time testing method the number of tests required to determine the fatigue strength can be drastically reduced. In future, therefore it will be possible to exclude unsuitable implant materials or components before further clinical investigations by using a time-efficient and application-oriented testing method.en
dc.identifier.urihttp://hdl.handle.net/2003/42372
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-24209
dc.language.isoende
dc.relation.ispartofseriesJournal of biomedical materials research / B;110(4)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/de
dc.subjectfatigue assessmenten
dc.subjectin vitro short-time testing methoden
dc.subjectmagnesium implants and stentsen
dc.subjecttitanium abutmentsen
dc.subjectultra-high molecular weight polyethyleneen
dc.subject.ddc660
dc.subject.rswkMaterialermüdungde
dc.subject.rswkWerkstoffprüfungde
dc.subject.rswkMagnesium-Implantatde
dc.subject.rswkStentde
dc.subject.rswkTitande
dc.subject.rswkPfeilerzahnde
dc.subject.rswkPE-UHMWde
dc.titleMechanical in vitro fatigue testing of implant materials and components using advanced characterization techniquesen
dc.typeTextde
dc.type.publicationtypeResearchArticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationWegner N, Klein M, Scholz R, Kotzem D, Macias Barrientos M, Walther F. Mechanical in vitro fatigue testing of implant materials and components using advanced characterization techniques. J Biomed Mater Res. 2022; 110(4): 898-909. doi:10.1002/jbm.b.34970de
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1002/jbm.b.34970de

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