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Fatigue life prediction of dentin-adhesive interface using micromechanical stress analysis

dc.contributor.authorSingh, Viraj
dc.contributor.authorMisra, Anil
dc.contributor.authorMarangos, Orestes
dc.contributor.authorPark, Jonggu
dc.contributor.authorYe, Qiang
dc.contributor.authorKieweg, Sarah L.
dc.contributor.authorSpencer, Paulette
dc.date.accessioned2017-03-01T21:23:22Z
dc.date.available2017-03-01T21:23:22Z
dc.date.issued2013-05-20
dc.identifier.citationSingh, Viraj, Anil Misra, Orestes Marangos, Jonggu Park, Qiang Ye, Sarah L. Kieweg, and Paulette Spencer. "Fatigue Life Prediction of Dentinâ adhesive Interface Using Micromechanical Stress Analysis." Dental Materials 27.9 (2011): n. pag.en_US
dc.identifier.urihttp://hdl.handle.net/1808/23324
dc.description.abstractObjectives

The objective of this work was to develop a methodology for the prediction of fatigue life of the dentin-adhesive (d-a) interface.

Methods

At the micro-scale, the d-a interface is composed of dissimilar material components. Under global loading, these components experience different local stress amplitudes. The overall fatigue life of the d-a interface is, therefore, determined by the material component that has the shortest fatigue life under local stresses. Multiple 3d finite element (FE) models were developed to determine the stress distribution within the d-a interface by considering variations in micro-scale geometry, material composition and boundary conditions. The results from these models were analyzed to obtain the local stress concentrations within each d-a interface component. By combining the local stress concentrations and experimentally determined stress versus number of cycle to failure (S-N) curves for the different material components, the overall fatigue life of the d-a interface was predicted.

Results

The fatigue life was found to be a function of the applied loading amplitude, boundary conditions, microstructure and the mechanical properties of the material components of the d-a interface. In addition, it was found that the overall fatigue life of the d-a interface is not determined by the weakest material component. In many cases, the overall fatigue life was determined by the adhesive although exposed collagen was the weakest material component. Comparison of the predicted results with experimental data from the literature showed both qualitative and quantitative agreement.

Significance

The methodology developed for fatigue life prediction can provide insight into the mechanisms that control degradation of the bond formed at the d-a interface.		en_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subjectDentinen_US
dc.subjectAdhesiveen_US
dc.subjectInterfaceen_US
dc.subjectBonden_US
dc.subjectHybrid layeren_US
dc.subjectFatigueen_US
dc.subjectFinite elementen_US
dc.titleFatigue life prediction of dentin-adhesive interface using micromechanical stress analysisen_US
dc.typeArticleen_US
kusw.kuauthorSpencer, Paulette
kusw.kudepartmentMechanical Engineeringen_US
dc.identifier.doi10.1016/j.dental.2011.05.010en_US
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccess


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This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Except where otherwise noted, this item's license is described as: This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.