Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/1438 |
Resumo: | Objective: The aim of this study was to evaluate the plastic deformation of NiTi and CuNiTi archwires submitted to mechanical cycling. Material and Methods: Orthodontic archwires made of CuNiTi of five commercial brands (n=10) were used: RMO, Orthometric, Ormco, Aditek and Eurodonto; and a Control Group of NiTi archwire: Aditek thermoactivated. All the archwires, with caliber 0.016”, were fitted into the slots of four conventional brackets, aligned and fixed to an acrylic plate. The test was performed by applying a load of 3 N and frequency of 2 Hz between the most central brackets, limited to 10,000 cycles. After cycling, the presence or absence of archwire fracture was observed. When there was no fracture, the archwires were analyzed relative to plastic deformation with the use of a transferer, measuring the angulation of the deformed archwire. Results: The results showed that there was no fracture in any of the wires analyzed. The Kruskal-Wallis test showed differences among the angulations of the orthodontic archwires (p=0.0009). With exception of the Ormco wires, the other types presented plastic deformation. The highest median of the angulation value was observed for the Aditek Copper NiTi archwire. The lowest median values were observed for the RMO, Eurodonto and Ormco archwires. The Aditek thermoactivated and Orthometric archwires presented intermediate angulation. Conclusion: None of the archwires analyzed presented fracture. These archwires presented differences in plastic deformation, irrespective of the presence of copper in their chemical composition. The Ormco archwire was the only type that presented no deformation whatever. KeywordsMechanical cycling; Copper; Deformation; Orthodontic wires; Fracture. |
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oai:ojs.pkp.sfu.ca:article/1438 |
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Brazilian Dental Science |
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Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cyclingObjective: The aim of this study was to evaluate the plastic deformation of NiTi and CuNiTi archwires submitted to mechanical cycling. Material and Methods: Orthodontic archwires made of CuNiTi of five commercial brands (n=10) were used: RMO, Orthometric, Ormco, Aditek and Eurodonto; and a Control Group of NiTi archwire: Aditek thermoactivated. All the archwires, with caliber 0.016”, were fitted into the slots of four conventional brackets, aligned and fixed to an acrylic plate. The test was performed by applying a load of 3 N and frequency of 2 Hz between the most central brackets, limited to 10,000 cycles. After cycling, the presence or absence of archwire fracture was observed. When there was no fracture, the archwires were analyzed relative to plastic deformation with the use of a transferer, measuring the angulation of the deformed archwire. Results: The results showed that there was no fracture in any of the wires analyzed. The Kruskal-Wallis test showed differences among the angulations of the orthodontic archwires (p=0.0009). With exception of the Ormco wires, the other types presented plastic deformation. The highest median of the angulation value was observed for the Aditek Copper NiTi archwire. The lowest median values were observed for the RMO, Eurodonto and Ormco archwires. The Aditek thermoactivated and Orthometric archwires presented intermediate angulation. Conclusion: None of the archwires analyzed presented fracture. These archwires presented differences in plastic deformation, irrespective of the presence of copper in their chemical composition. The Ormco archwire was the only type that presented no deformation whatever. KeywordsMechanical cycling; Copper; Deformation; Orthodontic wires; Fracture.Institute of Science and Technology of São José dos Campos2017-09-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfimage/tiffimage/tiffapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://ojs.ict.unesp.br/index.php/cob/article/view/143810.14295/bds.2017.v20i3.1438Brazilian Dental Science; Vol. 20 No. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 78-86Brazilian Dental Science; v. 20 n. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 78-862178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/1438/1171https://ojs.ict.unesp.br/index.php/cob/article/view/1438/3016https://ojs.ict.unesp.br/index.php/cob/article/view/1438/3017https://ojs.ict.unesp.br/index.php/cob/article/view/1438/3018Copyright (c) 2017 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessGarcia, Fernando GonçalvesBarbosa, Jurandir AntonioBasting, Roberta Tarkany2020-01-28T12:13:41Zoai:ojs.pkp.sfu.ca:article/1438Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:13.021987Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
title |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
spellingShingle |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling Garcia, Fernando Gonçalves |
title_short |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
title_full |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
title_fullStr |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
title_full_unstemmed |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
title_sort |
Comparative analysis of plastic deformation of NiTi and CuNiTi wires submitted to mechanical cycling |
author |
Garcia, Fernando Gonçalves |
author_facet |
Garcia, Fernando Gonçalves Barbosa, Jurandir Antonio Basting, Roberta Tarkany |
author_role |
author |
author2 |
Barbosa, Jurandir Antonio Basting, Roberta Tarkany |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Garcia, Fernando Gonçalves Barbosa, Jurandir Antonio Basting, Roberta Tarkany |
description |
Objective: The aim of this study was to evaluate the plastic deformation of NiTi and CuNiTi archwires submitted to mechanical cycling. Material and Methods: Orthodontic archwires made of CuNiTi of five commercial brands (n=10) were used: RMO, Orthometric, Ormco, Aditek and Eurodonto; and a Control Group of NiTi archwire: Aditek thermoactivated. All the archwires, with caliber 0.016”, were fitted into the slots of four conventional brackets, aligned and fixed to an acrylic plate. The test was performed by applying a load of 3 N and frequency of 2 Hz between the most central brackets, limited to 10,000 cycles. After cycling, the presence or absence of archwire fracture was observed. When there was no fracture, the archwires were analyzed relative to plastic deformation with the use of a transferer, measuring the angulation of the deformed archwire. Results: The results showed that there was no fracture in any of the wires analyzed. The Kruskal-Wallis test showed differences among the angulations of the orthodontic archwires (p=0.0009). With exception of the Ormco wires, the other types presented plastic deformation. The highest median of the angulation value was observed for the Aditek Copper NiTi archwire. The lowest median values were observed for the RMO, Eurodonto and Ormco archwires. The Aditek thermoactivated and Orthometric archwires presented intermediate angulation. Conclusion: None of the archwires analyzed presented fracture. These archwires presented differences in plastic deformation, irrespective of the presence of copper in their chemical composition. The Ormco archwire was the only type that presented no deformation whatever. KeywordsMechanical cycling; Copper; Deformation; Orthodontic wires; Fracture. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-12 |
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://ojs.ict.unesp.br/index.php/cob/article/view/1438 10.14295/bds.2017.v20i3.1438 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/1438 |
identifier_str_mv |
10.14295/bds.2017.v20i3.1438 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1438/1171 https://ojs.ict.unesp.br/index.php/cob/article/view/1438/3016 https://ojs.ict.unesp.br/index.php/cob/article/view/1438/3017 https://ojs.ict.unesp.br/index.php/cob/article/view/1438/3018 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf image/tiff image/tiff application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 20 No. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 78-86 Brazilian Dental Science; v. 20 n. 3 (2017): Jul. - Sep. / 2017 - Published September 2017; 78-86 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346900143931392 |