Effect of temperature on the orthodontic clinical applications of niti closed-coil springs

NiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the austenitic retransformation during the unloading. The temperature variations induced changes in th...

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Authors: Espinar-Escalona, E., Llamas, J.M., Barrera Mora, José María, Ábalos Labruzzi, Camilo Manuel, Gil Mur, Javier
Format: article
Status:Versión enviada para evaluación y publicación
Publication Date:2013
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/32738
Online Access:http://hdl.handle.net/11441/32738
https://doi.org/10.4317/medoral.19073
Access Level:Open access
Keyword:Superelasticity
NiTi
Springs
Orthodontic
Coils
Recovery
Temperature
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oai_identifier_str oai:idus.us.es:11441/32738
network_acronym_str ES
network_name_str España
repository_id_str
spelling Effect of temperature on the orthodontic clinical applications of niti closed-coil springsEspinar-Escalona, E.Llamas, J.M.Barrera Mora, José MaríaÁbalos Labruzzi, Camilo ManuelGil Mur, JavierSuperelasticityNiTiSpringsOrthodonticCoilsRecoveryTemperatureNiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the austenitic retransformation during the unloading. The temperature variations induced changes in the spring force. Objectives: The aim of this study is to investigate the effect of the temperature variations in the spring forces and corrosion behaviour simulating the ingestion hot/cold drinks and food. Study Design: The springs were subjected to a tensile force using universal testing machine MTS-Adamel (100 N load cell). All tests were performed in artificial saliva maintained at different temperatures. The corrosion tests were performed according to the ISO-standard 10993-15:2000. Results: The increase in temperature of 18ºC induced an increase in the spring force of 30%. However, when the temperature returns to 37ºC the distraction force recovers near the initial level. After cooling down the spring to 15ºC, the force decreased by 46%. This investigation show as the temperature increase, the corrosion potential shifts towards negative values and the corrosion density is rising. Conclusions: The changes of the temperatures do not modify the superelastic behaviour of the NiTi closed-coil springs. The corrosion potential of NiTi in artificial saliva is decreasing by the rise of the temperatures.Medicina Oral SlEstomatología2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/11441/32738https://doi.org/10.4317/medoral.19073reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMedicina oral, patología oral y cirugía bucal, 18(4), 721-724info:eu-repo/semantics/openAccessoai:idus.us.es:11441/327382026-06-17T12:51:07Z
dc.title.none.fl_str_mv Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
title Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
spellingShingle Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
Espinar-Escalona, E.
Superelasticity
NiTi
Springs
Orthodontic
Coils
Recovery
Temperature
title_short Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
title_full Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
title_fullStr Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
title_full_unstemmed Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
title_sort Effect of temperature on the orthodontic clinical applications of niti closed-coil springs
dc.creator.none.fl_str_mv Espinar-Escalona, E.
Llamas, J.M.
Barrera Mora, José María
Ábalos Labruzzi, Camilo Manuel
Gil Mur, Javier
author Espinar-Escalona, E.
author_facet Espinar-Escalona, E.
Llamas, J.M.
Barrera Mora, José María
Ábalos Labruzzi, Camilo Manuel
Gil Mur, Javier
author_role author
author2 Llamas, J.M.
Barrera Mora, José María
Ábalos Labruzzi, Camilo Manuel
Gil Mur, Javier
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Estomatología
dc.subject.none.fl_str_mv Superelasticity
NiTi
Springs
Orthodontic
Coils
Recovery
Temperature
topic Superelasticity
NiTi
Springs
Orthodontic
Coils
Recovery
Temperature
description NiTi spring coils were used to obtain large deformation under a constant force. The device consists on a NiTi coil spring, superelastic at body temperature, in order to have a stress plateau during the austenitic retransformation during the unloading. The temperature variations induced changes in the spring force. Objectives: The aim of this study is to investigate the effect of the temperature variations in the spring forces and corrosion behaviour simulating the ingestion hot/cold drinks and food. Study Design: The springs were subjected to a tensile force using universal testing machine MTS-Adamel (100 N load cell). All tests were performed in artificial saliva maintained at different temperatures. The corrosion tests were performed according to the ISO-standard 10993-15:2000. Results: The increase in temperature of 18ºC induced an increase in the spring force of 30%. However, when the temperature returns to 37ºC the distraction force recovers near the initial level. After cooling down the spring to 15ºC, the force decreased by 46%. This investigation show as the temperature increase, the corrosion potential shifts towards negative values and the corrosion density is rising. Conclusions: The changes of the temperatures do not modify the superelastic behaviour of the NiTi closed-coil springs. The corrosion potential of NiTi in artificial saliva is decreasing by the rise of the temperatures.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11441/32738
https://doi.org/10.4317/medoral.19073
url http://hdl.handle.net/11441/32738
https://doi.org/10.4317/medoral.19073
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Medicina oral, patología oral y cirugía bucal, 18(4), 721-724
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Medicina Oral Sl
publisher.none.fl_str_mv Medicina Oral Sl
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869419127497555968
score 15,301603

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