Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian journal of oral sciences (Online) |
Texto Completo: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656598 |
Resumo: | Aim: The aim of present study was to evaluate if the cross-section and the number of use have influence in cyclic fatigue resistance of rotary files. Methods: K3 Endo (group K) and EndoSequence (group E) files, 25/.04, 25 mm, were subdivided into 3 subgroups (n=12) according to the number of uses, 1, 3 and 5 uses, totalizing 72 files. The files were submitted to dynamic assays device moved by an electric engine, using 300 rpm of speed that permitted the reproduction of pecking motion. The files run within a temperate steel ring’s groove, simulating an instrumentation of a curved root canal with 40-degrees and 5-mm of curvature radius. The fracture of file was detected by sensor of device and the time and the number of cycles was acquired. The data were analyzed statistically by two-way ANOVA (p<0.05). Results: There were no statistical significant differences in regard to the number of uses (p>0.05). K3 Endo files showed greater resistance to cyclic fatigue than EndoSequence instruments (p<0.01). Conclusion: It may be concluded that the cross-section of instruments presented significant influence in cyclic fatigue resistance and the number of uses up to 5 times had no influence in cyclic fatigue resistance in both NiTi rotation systems evaluated. |
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UNICAMP-8 |
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Brazilian journal of oral sciences (Online) |
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Influence of cross-section and number of use in cyclic fatigue resistance of rotary instrumentsFatigueNickelTitaniumDental instruments.Aim: The aim of present study was to evaluate if the cross-section and the number of use have influence in cyclic fatigue resistance of rotary files. Methods: K3 Endo (group K) and EndoSequence (group E) files, 25/.04, 25 mm, were subdivided into 3 subgroups (n=12) according to the number of uses, 1, 3 and 5 uses, totalizing 72 files. The files were submitted to dynamic assays device moved by an electric engine, using 300 rpm of speed that permitted the reproduction of pecking motion. The files run within a temperate steel ring’s groove, simulating an instrumentation of a curved root canal with 40-degrees and 5-mm of curvature radius. The fracture of file was detected by sensor of device and the time and the number of cycles was acquired. The data were analyzed statistically by two-way ANOVA (p<0.05). Results: There were no statistical significant differences in regard to the number of uses (p>0.05). K3 Endo files showed greater resistance to cyclic fatigue than EndoSequence instruments (p<0.01). Conclusion: It may be concluded that the cross-section of instruments presented significant influence in cyclic fatigue resistance and the number of uses up to 5 times had no influence in cyclic fatigue resistance in both NiTi rotation systems evaluated.Universidade Estadual de Campinas2019-09-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionOriginal articleapplication/pdfhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/865659810.20396/bjos.v18i0.8656598Brazilian Journal of Oral Sciences; v. 18 (2019): Continuous Publication; e191208Brazilian Journal of Oral Sciences; Vol. 18 (2019): Continuous Publication; e1912081677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPenghttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656598/21488Brazil; ContemporaryBrisighello, Luís CésarCandeiro, George Táccio de MirandaPaz, Luiza RiomarPaiva, Hermano CameloGavini, Giulioinfo:eu-repo/semantics/openAccess2020-12-22T01:33:53Zoai:ojs.periodicos.sbu.unicamp.br:article/8656598Revistahttps://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:2020-12-22T01:33:53Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
title |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
spellingShingle |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments Brisighello, Luís César Fatigue Nickel Titanium Dental instruments. |
title_short |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
title_full |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
title_fullStr |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
title_full_unstemmed |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
title_sort |
Influence of cross-section and number of use in cyclic fatigue resistance of rotary instruments |
author |
Brisighello, Luís César |
author_facet |
Brisighello, Luís César Candeiro, George Táccio de Miranda Paz, Luiza Riomar Paiva, Hermano Camelo Gavini, Giulio |
author_role |
author |
author2 |
Candeiro, George Táccio de Miranda Paz, Luiza Riomar Paiva, Hermano Camelo Gavini, Giulio |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Brisighello, Luís César Candeiro, George Táccio de Miranda Paz, Luiza Riomar Paiva, Hermano Camelo Gavini, Giulio |
dc.subject.por.fl_str_mv |
Fatigue Nickel Titanium Dental instruments. |
topic |
Fatigue Nickel Titanium Dental instruments. |
description |
Aim: The aim of present study was to evaluate if the cross-section and the number of use have influence in cyclic fatigue resistance of rotary files. Methods: K3 Endo (group K) and EndoSequence (group E) files, 25/.04, 25 mm, were subdivided into 3 subgroups (n=12) according to the number of uses, 1, 3 and 5 uses, totalizing 72 files. The files were submitted to dynamic assays device moved by an electric engine, using 300 rpm of speed that permitted the reproduction of pecking motion. The files run within a temperate steel ring’s groove, simulating an instrumentation of a curved root canal with 40-degrees and 5-mm of curvature radius. The fracture of file was detected by sensor of device and the time and the number of cycles was acquired. The data were analyzed statistically by two-way ANOVA (p<0.05). Results: There were no statistical significant differences in regard to the number of uses (p>0.05). K3 Endo files showed greater resistance to cyclic fatigue than EndoSequence instruments (p<0.01). Conclusion: It may be concluded that the cross-section of instruments presented significant influence in cyclic fatigue resistance and the number of uses up to 5 times had no influence in cyclic fatigue resistance in both NiTi rotation systems evaluated. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09-10 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Original article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656598 10.20396/bjos.v18i0.8656598 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656598 |
identifier_str_mv |
10.20396/bjos.v18i0.8656598 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656598/21488 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
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. 18 (2019): Continuous Publication; e191208 Brazilian Journal of Oral Sciences; Vol. 18 (2019): Continuous Publication; e191208 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_ |
1800216402927288320 |