Importance of tubule density to the fracture toughness of dentin

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dc.citation.journalTitleARCHIVES OF ORAL BIOLOGY
dc.contributor.authorMontoya, C.
dc.contributor.authorArola, D.
dc.contributor.authorOssa, E.A.
dc.contributor.departmentUniversidad EAFIT. Departamento de Ingeniería de Producciónspa
dc.contributor.researchgroupMateriales de Ingenieríaspa
dc.creatorMontoya, C.
dc.creatorArola, D.
dc.creatorOssa, E.A.
dc.date.accessioned2021-04-12T21:26:43Z
dc.date.available2021-04-12T21:26:43Z
dc.date.issued2016-07-01
dc.description.abstractObjective: The fracture toughness of dentin is critical to the prevention of tooth fracture. Within the tooth crown, the mechanical properties of dentin are influenced by spatial variations in the density and diameter of the dentin tubules with distance from the pulp. There are also relevant changes to the microstructure of dentin with age. In this investigation the importance of tubule density to the fracture toughness of dentin was evaluated in ``young'' and ``old'' age groups. Methods: The variations in microstructure (density and diameter of tubules) from young and old donor teeth were studied by means of optical microscopy. Results: A reduction in the density and diameter of tubules was identified to occur with aging. An approach previously proposed to study the mechanical behavior of porous materials was used to model the fracture toughness of coronal dentin in terms of the tubule characteristics. Results were then compared with published results from previous studies. Conclusions: The model predictions were consistent with experimental results for the fracture toughness of dentin from young donor teeth, but overestimated the values that have been reported for ``old'' dentin. (C) 2016 Elsevier Ltd. All rights reserved.eng
dc.identifierhttps://eafit.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=2316
dc.identifier.doi10.1016/j.archoralbio.2016.03.003
dc.identifier.issn00039969
dc.identifier.issn18791506
dc.identifier.otherWOS;000375508400002
dc.identifier.otherPUBMED;27010828
dc.identifier.otherSCOPUS;2-s2.0-84961844020
dc.identifier.urihttp://hdl.handle.net/10784/29095
dc.language.isoeng
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84961844020&doi=10.1016%2fj.archoralbio.2016.03.003&partnerID=40&md5=bf014f07dacfb4f2f722dc91002dab8d
dc.rightshttps://v2.sherpa.ac.uk/id/publication/issn/0003-9969
dc.sourceARCHIVES OF ORAL BIOLOGY
dc.subjectDentineng
dc.subjectFracture toughnesseng
dc.subjectBalshin modeleng
dc.subjectPorosityeng
dc.titleImportance of tubule density to the fracture toughness of dentineng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typearticleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.typepublishedVersioneng
dc.type.localArtículospa

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