A finite element study on the mechanical behavior of reciprocating endodontic files
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian journal of oral sciences (Online) |
Texto Completo: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846 |
Resumo: | Aim: To evaluate the mechanical behavior of reciprocating endodontic files, comparing nickeltitanium (NiTi) and stainless steel 316L (St.St. 316L) as manufacturing material for such instruments. Methods: A three-dimensional finite element model was designed for this study. The simplified instrument model geometry was created on commercial CAD/CAM software. Real strain stress curves of St.St. 316L and NiTi were used in the analysis. Non-linear static analysis was performed to simulate the instrument inside root canal at an angle of 45° in the apical portion, and subjected to torsion of 0.3 N.cm. Results: Non-linear NiTi material showed super elasticity and high functionality in such applications. Very high levels of stress appeared in the file at 3 mm from the tip close to yield point. Conclusions: St. St. 316L is not suitable for manufacturing reciprocating instruments. Modeling of the instrument with equivalent circular cross-sectional area did not affect results quality. Reciprocating instruments have short lifespan, thus manufacturers recommend using one file per tooth. Reciprocating instruments are recommended for less experienced dentist. |
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Brazilian journal of oral sciences (Online) |
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A finite element study on the mechanical behavior of reciprocating endodontic filesEndodonticsStainless steelNickel. TitaniumOdontologiaAim: To evaluate the mechanical behavior of reciprocating endodontic files, comparing nickeltitanium (NiTi) and stainless steel 316L (St.St. 316L) as manufacturing material for such instruments. Methods: A three-dimensional finite element model was designed for this study. The simplified instrument model geometry was created on commercial CAD/CAM software. Real strain stress curves of St.St. 316L and NiTi were used in the analysis. Non-linear static analysis was performed to simulate the instrument inside root canal at an angle of 45° in the apical portion, and subjected to torsion of 0.3 N.cm. Results: Non-linear NiTi material showed super elasticity and high functionality in such applications. Very high levels of stress appeared in the file at 3 mm from the tip close to yield point. Conclusions: St. St. 316L is not suitable for manufacturing reciprocating instruments. Modeling of the instrument with equivalent circular cross-sectional area did not affect results quality. Reciprocating instruments have short lifespan, thus manufacturers recommend using one file per tooth. Reciprocating instruments are recommended for less experienced dentist.Universidade Estadual de Campinas2015-03-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846Brazilian Journal of Oral Sciences; v. 14 n. 1 (2015): Jan./Mar.; 52-59Brazilian Journal of Oral Sciences; Vol. 14 No. 1 (2015): Jan./Mar.; 52-591677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846/8379Copyright (c) 2015 Mohamed I. El-Anwar, Ayman O. Mandorah, Salah A. Yousief, Tarek A. Soliman, Tarek M. Abd El-Wahabhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessEl-Anwar, Mohamed I.Mandorah, Ayman O.Yousief, Salah A.Soliman, Tarek A.El-Wahab, Tarek M. Abd2023-10-02T13:06:45Zoai:ojs.periodicos.sbu.unicamp.br:article/8640846Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2023-10-02T13:06:45Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
A finite element study on the mechanical behavior of reciprocating endodontic files |
title |
A finite element study on the mechanical behavior of reciprocating endodontic files |
spellingShingle |
A finite element study on the mechanical behavior of reciprocating endodontic files El-Anwar, Mohamed I. Endodontics Stainless steel Nickel. Titanium Odontologia |
title_short |
A finite element study on the mechanical behavior of reciprocating endodontic files |
title_full |
A finite element study on the mechanical behavior of reciprocating endodontic files |
title_fullStr |
A finite element study on the mechanical behavior of reciprocating endodontic files |
title_full_unstemmed |
A finite element study on the mechanical behavior of reciprocating endodontic files |
title_sort |
A finite element study on the mechanical behavior of reciprocating endodontic files |
author |
El-Anwar, Mohamed I. |
author_facet |
El-Anwar, Mohamed I. Mandorah, Ayman O. Yousief, Salah A. Soliman, Tarek A. El-Wahab, Tarek M. Abd |
author_role |
author |
author2 |
Mandorah, Ayman O. Yousief, Salah A. Soliman, Tarek A. El-Wahab, Tarek M. Abd |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
El-Anwar, Mohamed I. Mandorah, Ayman O. Yousief, Salah A. Soliman, Tarek A. El-Wahab, Tarek M. Abd |
dc.subject.por.fl_str_mv |
Endodontics Stainless steel Nickel. Titanium Odontologia |
topic |
Endodontics Stainless steel Nickel. Titanium Odontologia |
description |
Aim: To evaluate the mechanical behavior of reciprocating endodontic files, comparing nickeltitanium (NiTi) and stainless steel 316L (St.St. 316L) as manufacturing material for such instruments. Methods: A three-dimensional finite element model was designed for this study. The simplified instrument model geometry was created on commercial CAD/CAM software. Real strain stress curves of St.St. 316L and NiTi were used in the analysis. Non-linear static analysis was performed to simulate the instrument inside root canal at an angle of 45° in the apical portion, and subjected to torsion of 0.3 N.cm. Results: Non-linear NiTi material showed super elasticity and high functionality in such applications. Very high levels of stress appeared in the file at 3 mm from the tip close to yield point. Conclusions: St. St. 316L is not suitable for manufacturing reciprocating instruments. Modeling of the instrument with equivalent circular cross-sectional area did not affect results quality. Reciprocating instruments have short lifespan, thus manufacturers recommend using one file per tooth. Reciprocating instruments are recommended for less experienced dentist. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-03-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846/8379 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
dc.source.none.fl_str_mv |
Brazilian Journal of Oral Sciences; v. 14 n. 1 (2015): Jan./Mar.; 52-59 Brazilian Journal of Oral Sciences; Vol. 14 No. 1 (2015): Jan./Mar.; 52-59 1677-3225 reponame:Brazilian journal of oral sciences (Online) instname:Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
instname_str |
Universidade Estadual de Campinas (UNICAMP) |
instacron_str |
UNICAMP |
institution |
UNICAMP |
reponame_str |
Brazilian journal of oral sciences (Online) |
collection |
Brazilian journal of oral sciences (Online) |
repository.name.fl_str_mv |
Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP) |
repository.mail.fl_str_mv |
brjorals@fop.unicamp.br||brjorals@fop.unicamp.br |
_version_ |
1800216397716914176 |