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Characterization and evaluation of the mechanical behaviour of endodontic-grade NiTi wires

2019-07Journal article Open access
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dc.contributor.authorPereira, Samuel
dc.contributor.authorCarvalho, André
dc.contributor.authorReis, Luís
dc.contributor.authorFreitas, Manuel
dc.contributor.authorMontalvão, Diogo
dc.date.accessioned2020-05-27T18:12:20Z
dc.date.available2020-05-27T18:12:20Z
dc.date.issued2019-07
dc.description.abstractThe orthodontic files have been used in dentistry since the middle ages and, as so, the shape, material and operation mode have changed since those days. In the late days, we have seen an increasing use of Nickel-Titanium (NiTi) alloys, to the detriment of more conventional alloys. At body temperature, these NiTi alloys present a superelastic behaviour, which allow the file to follow the teeth root in an easier way comparing to conventional alloys and have been reported to be more effective in the removal of the tooth pulp tissue, and in the protection of the tooth structure. Not withs tanding, these NiTi instruments, as all the others being subjected to bending loading, they fracture without any visual signal of degradation. Thereby, there is a need of studying these alloys, as they present a high hysteresis cycle and a high non-linearity in the Elastic Domain. Currently, there is not an international standard for these alloys, so various authors have attempted to design systems that can test NiTi endodontic files under fatigue loads, usually based on empirical setups. Following a systematic approach, this work presents the results of rotary fatigue tests for two Alfa Aesar® Nitinol wires with different diameters (0,58mm and 0,25mm).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPEREIRA, Samuel; [et al] – Characterization and evaluation of the mechanical behaviour of endodontic-grade NiTi wires. ". Frattura ed Integrita Strutturale. ISSN 1971-8993. Vol. 13, N.º 49 (2019), pp. 450-462pt_PT
dc.identifier.doi10.3221/IGF-ESIS.49.43pt_PT
dc.identifier.issn1971-8993
dc.identifier.urihttp://hdl.handle.net/10400.21/11738
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherItalian Group of Fracturept_PT
dc.relation.publisherversionhttps://www.scopus.com/record/display.uri?eid=2-s2.0-85070739538&origin=inward&txGid=2605830038044ecd413e9fc3787fa7a9pt_PT
dc.subjectFatiguept_PT
dc.subjectSuperelastic alloyspt_PT
dc.subjectNiTi wirespt_PT
dc.subjectLife evaluationpt_PT
dc.titleCharacterization and evaluation of the mechanical behaviour of endodontic-grade NiTi wirespt_PT
dc.title.alternativeCaracterização e avaliação do comportamento mecânico de arames de NiTi para endodônticapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage462pt_PT
oaire.citation.issue49pt_PT
oaire.citation.startPage450pt_PT
oaire.citation.titleFrattura ed Integrità Strutturalept_PT
oaire.citation.volume13pt_PT
person.familyNameCarvalho
person.givenNameAndré
person.identifier.ciencia-id4719-C315-3211
person.identifier.orcid0000-0002-2089-7156
person.identifier.ridI-7571-2015
person.identifier.scopus-author-id58778332900
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication68e457b2-45ab-449f-a240-7317c1a42c1b
relation.isAuthorOfPublication.latestForDiscovery68e457b2-45ab-449f-a240-7317c1a42c1b

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