Color stability of esthetic coatings applied to nickel-titanium archwires
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Odontologia da UNESP |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772017000500307 |
Resumo: | Abstract Introduction Color stability is an important feature to be considered when using esthetic coated archwires. Objective To evaluate color changes on the surface of esthetic nickel-titanium archwires coated with Teflon (Ortho Organizers, USA) or epoxy resin (Tecnident, Brazil) after immersion in staining solution. Material and method Twelve 20-mm-long wire segments were used for each type of coating, which were mounted as two test specimens with a width of 7 mm each. The buccal surface of the archwires was evaluated for fluorescence and color measurements both at baseline and after immersion in a staining solution for 21 days using the VITA Easyshade® Compact spectrophotometer (Model DEASYC220). Differences in total color change according to coating type were compared using an independent samples t-test (p<0.05). The surface characteristics of as-received coated archwires were assessed using scanning electron microscopy. Result Color changes were observed on the esthetic coatings, with a significant difference between the two brands analyzed. Surface analysis revealed flaws such as wear, pitting, elevations, lack of material, granulation, grooves, cracks, and lack of standardization in the coating process in all as-received archwires, but flaws were less evident in epoxy-resin coatings. Conclusion The two esthetic coatings did not show color stability, but Teflon coatings showed a more intense color change than epoxy-resin coatings. |
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Color stability of esthetic coatings applied to nickel-titanium archwiresOrthodontic wiresdental estheticsfluorescenceAbstract Introduction Color stability is an important feature to be considered when using esthetic coated archwires. Objective To evaluate color changes on the surface of esthetic nickel-titanium archwires coated with Teflon (Ortho Organizers, USA) or epoxy resin (Tecnident, Brazil) after immersion in staining solution. Material and method Twelve 20-mm-long wire segments were used for each type of coating, which were mounted as two test specimens with a width of 7 mm each. The buccal surface of the archwires was evaluated for fluorescence and color measurements both at baseline and after immersion in a staining solution for 21 days using the VITA Easyshade® Compact spectrophotometer (Model DEASYC220). Differences in total color change according to coating type were compared using an independent samples t-test (p<0.05). The surface characteristics of as-received coated archwires were assessed using scanning electron microscopy. Result Color changes were observed on the esthetic coatings, with a significant difference between the two brands analyzed. Surface analysis revealed flaws such as wear, pitting, elevations, lack of material, granulation, grooves, cracks, and lack of standardization in the coating process in all as-received archwires, but flaws were less evident in epoxy-resin coatings. Conclusion The two esthetic coatings did not show color stability, but Teflon coatings showed a more intense color change than epoxy-resin coatings.Universidade Estadual Paulista Júlio de Mesquita Filho2017-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772017000500307Revista de Odontologia da UNESP v.46 n.5 2017reponame:Revista de Odontologia da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP10.1590/1807-2577.02317info:eu-repo/semantics/openAccessREGO,Marcus Vinicius Neiva Nunes doLAU,Geórgia Wain ThiARAÚJO,Yago CarneiroSILVA,Rayssa Melo eeng2017-10-31T00:00:00Zoai:scielo:S1807-25772017000500307Revistahttps://www.revodontolunesp.com.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||adriana@foar.unesp.br1807-25770101-1774opendoar:2017-10-31T00:00Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Color stability of esthetic coatings applied to nickel-titanium archwires |
title |
Color stability of esthetic coatings applied to nickel-titanium archwires |
spellingShingle |
Color stability of esthetic coatings applied to nickel-titanium archwires REGO,Marcus Vinicius Neiva Nunes do Orthodontic wires dental esthetics fluorescence |
title_short |
Color stability of esthetic coatings applied to nickel-titanium archwires |
title_full |
Color stability of esthetic coatings applied to nickel-titanium archwires |
title_fullStr |
Color stability of esthetic coatings applied to nickel-titanium archwires |
title_full_unstemmed |
Color stability of esthetic coatings applied to nickel-titanium archwires |
title_sort |
Color stability of esthetic coatings applied to nickel-titanium archwires |
author |
REGO,Marcus Vinicius Neiva Nunes do |
author_facet |
REGO,Marcus Vinicius Neiva Nunes do LAU,Geórgia Wain Thi ARAÚJO,Yago Carneiro SILVA,Rayssa Melo e |
author_role |
author |
author2 |
LAU,Geórgia Wain Thi ARAÚJO,Yago Carneiro SILVA,Rayssa Melo e |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
REGO,Marcus Vinicius Neiva Nunes do LAU,Geórgia Wain Thi ARAÚJO,Yago Carneiro SILVA,Rayssa Melo e |
dc.subject.por.fl_str_mv |
Orthodontic wires dental esthetics fluorescence |
topic |
Orthodontic wires dental esthetics fluorescence |
description |
Abstract Introduction Color stability is an important feature to be considered when using esthetic coated archwires. Objective To evaluate color changes on the surface of esthetic nickel-titanium archwires coated with Teflon (Ortho Organizers, USA) or epoxy resin (Tecnident, Brazil) after immersion in staining solution. Material and method Twelve 20-mm-long wire segments were used for each type of coating, which were mounted as two test specimens with a width of 7 mm each. The buccal surface of the archwires was evaluated for fluorescence and color measurements both at baseline and after immersion in a staining solution for 21 days using the VITA Easyshade® Compact spectrophotometer (Model DEASYC220). Differences in total color change according to coating type were compared using an independent samples t-test (p<0.05). The surface characteristics of as-received coated archwires were assessed using scanning electron microscopy. Result Color changes were observed on the esthetic coatings, with a significant difference between the two brands analyzed. Surface analysis revealed flaws such as wear, pitting, elevations, lack of material, granulation, grooves, cracks, and lack of standardization in the coating process in all as-received archwires, but flaws were less evident in epoxy-resin coatings. Conclusion The two esthetic coatings did not show color stability, but Teflon coatings showed a more intense color change than epoxy-resin coatings. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772017000500307 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772017000500307 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-2577.02317 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
dc.source.none.fl_str_mv |
Revista de Odontologia da UNESP v.46 n.5 2017 reponame:Revista de Odontologia da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Revista de Odontologia da UNESP |
collection |
Revista de Odontologia da UNESP |
repository.name.fl_str_mv |
Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
||adriana@foar.unesp.br |
_version_ |
1748958560292700160 |