Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | https://doi.org/10.1155/2016/7617493 http://hdl.handle.net/1843/57090 https://orcid.org/0000-0001-9172-6429 https://orcid.org/0000-0003-1830-2704 https://orcid.org/0000-0003-1565-1888 https://orcid.org/0000-0002-0574-5218 |
Resumo: | The effects of the presence of the R-phase in a near-equiatomic NiTi alloy on the mechanical responses of an endodontic instrument were studied by using finite element analysis. The input data for the constitutive model in the simulation were obtained by tensile testing of three NiTi wires: superelastic austenite NiTi, austenite + R-phase NiTi, and fully R-phased NiTi. The wires were also characterized by X-ray diffraction and differential scanning calorimetry. A commercially available endodontic instrument was scanned using microcomputed tomography, and the resulting images were used to build the geometrical model. The numerical analyses were performed in ABAQUS using load and boundary conditions based on the ISO 3630-1 specification for the bending and torsion of endodontic instruments. The modeled instrument containing only R-phase demanded the lowest moment to be bent, followed by the one with mixed austenite + R-phase. The superelastic instrument, containing essentially austenite, required the highest bending moment. During bending, the fully R-phased instrument reached the lowest stress values; however, it also experienced the highest angular deflection when subjected to torsion. In summary, this simulation showed that NiTi endodontic instruments containing only R-phase in their microstructure would show higher flexibility without compromising their performance under torsion. |
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2023-07-27T18:58:19Z2023-07-27T18:58:19Z20162016112https://doi.org/10.1155/2016/76174931537-744Xhttp://hdl.handle.net/1843/57090https://orcid.org/0000-0001-9172-6429https://orcid.org/0000-0003-1830-2704https://orcid.org/0000-0003-1565-1888https://orcid.org/0000-0002-0574-5218The effects of the presence of the R-phase in a near-equiatomic NiTi alloy on the mechanical responses of an endodontic instrument were studied by using finite element analysis. The input data for the constitutive model in the simulation were obtained by tensile testing of three NiTi wires: superelastic austenite NiTi, austenite + R-phase NiTi, and fully R-phased NiTi. The wires were also characterized by X-ray diffraction and differential scanning calorimetry. A commercially available endodontic instrument was scanned using microcomputed tomography, and the resulting images were used to build the geometrical model. The numerical analyses were performed in ABAQUS using load and boundary conditions based on the ISO 3630-1 specification for the bending and torsion of endodontic instruments. The modeled instrument containing only R-phase demanded the lowest moment to be bent, followed by the one with mixed austenite + R-phase. The superelastic instrument, containing essentially austenite, required the highest bending moment. During bending, the fully R-phased instrument reached the lowest stress values; however, it also experienced the highest angular deflection when subjected to torsion. In summary, this simulation showed that NiTi endodontic instruments containing only R-phase in their microstructure would show higher flexibility without compromising their performance under torsion.porUniversidade Federal de Minas GeraisUFMGBrasilENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICAFAO - FACULDADE DE ODONTOLOGIAThe Scientific World JournalMetodo dos elementos finitosStructural CharacterizationFinite Element AnalysisEffects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://www.hindawi.com/journals/tswj/2016/7617493/Leandro de Arruda SantosPedro Damas ResendeMaria Guiomar de Azevedo BahiaVicente Tadeu Lopes Buonoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/57090/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALEffects of R-Phase on Mechanical Responses of a Nickel-Titanium Endodontic Instrument Structural Characterization and Finite Element Analysis.pdfEffects of R-Phase on Mechanical Responses of a Nickel-Titanium Endodontic Instrument Structural Characterization and Finite Element Analysis.pdfapplication/pdf13487076https://repositorio.ufmg.br/bitstream/1843/57090/2/Effects%20of%20R-Phase%20on%20Mechanical%20Responses%20of%20a%20Nickel-Titanium%20Endodontic%20Instrument%20Structural%20Characterization%20and%20Finite%20Element%20Analysis.pdf52c485e85d86462a41236c8fc6f14e17MD521843/570902023-07-27 15:58:19.853oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-07-27T18:58:19Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
title |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
spellingShingle |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis Leandro de Arruda Santos Structural Characterization Finite Element Analysis Metodo dos elementos finitos |
title_short |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
title_full |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
title_fullStr |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
title_full_unstemmed |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
title_sort |
Effects of R-Phase on mechanical responses of a nickel-titanium endodontic instrument: structural characterization and finite element analysis |
author |
Leandro de Arruda Santos |
author_facet |
Leandro de Arruda Santos Pedro Damas Resende Maria Guiomar de Azevedo Bahia Vicente Tadeu Lopes Buono |
author_role |
author |
author2 |
Pedro Damas Resende Maria Guiomar de Azevedo Bahia Vicente Tadeu Lopes Buono |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Leandro de Arruda Santos Pedro Damas Resende Maria Guiomar de Azevedo Bahia Vicente Tadeu Lopes Buono |
dc.subject.por.fl_str_mv |
Structural Characterization Finite Element Analysis |
topic |
Structural Characterization Finite Element Analysis Metodo dos elementos finitos |
dc.subject.other.pt_BR.fl_str_mv |
Metodo dos elementos finitos |
description |
The effects of the presence of the R-phase in a near-equiatomic NiTi alloy on the mechanical responses of an endodontic instrument were studied by using finite element analysis. The input data for the constitutive model in the simulation were obtained by tensile testing of three NiTi wires: superelastic austenite NiTi, austenite + R-phase NiTi, and fully R-phased NiTi. The wires were also characterized by X-ray diffraction and differential scanning calorimetry. A commercially available endodontic instrument was scanned using microcomputed tomography, and the resulting images were used to build the geometrical model. The numerical analyses were performed in ABAQUS using load and boundary conditions based on the ISO 3630-1 specification for the bending and torsion of endodontic instruments. The modeled instrument containing only R-phase demanded the lowest moment to be bent, followed by the one with mixed austenite + R-phase. The superelastic instrument, containing essentially austenite, required the highest bending moment. During bending, the fully R-phased instrument reached the lowest stress values; however, it also experienced the highest angular deflection when subjected to torsion. In summary, this simulation showed that NiTi endodontic instruments containing only R-phase in their microstructure would show higher flexibility without compromising their performance under torsion. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2023-07-27T18:58:19Z |
dc.date.available.fl_str_mv |
2023-07-27T18:58:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1843/57090 |
dc.identifier.doi.pt_BR.fl_str_mv |
https://doi.org/10.1155/2016/7617493 |
dc.identifier.issn.pt_BR.fl_str_mv |
1537-744X |
dc.identifier.orcid.pt_BR.fl_str_mv |
https://orcid.org/0000-0001-9172-6429 https://orcid.org/0000-0003-1830-2704 https://orcid.org/0000-0003-1565-1888 https://orcid.org/0000-0002-0574-5218 |
url |
https://doi.org/10.1155/2016/7617493 http://hdl.handle.net/1843/57090 https://orcid.org/0000-0001-9172-6429 https://orcid.org/0000-0003-1830-2704 https://orcid.org/0000-0003-1565-1888 https://orcid.org/0000-0002-0574-5218 |
identifier_str_mv |
1537-744X |
dc.language.iso.fl_str_mv |
por |
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por |
dc.relation.ispartof.pt_BR.fl_str_mv |
The Scientific World Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.publisher.initials.fl_str_mv |
UFMG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
ENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICA FAO - FACULDADE DE ODONTOLOGIA |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
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reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
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Universidade Federal de Minas Gerais (UFMG) |
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UFMG |
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Repositório Institucional da UFMG |
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