Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness

Detalhes bibliográficos
Autor(a) principal: Ferreira, Isana Álvares
Data de Publicação: 2015
Outros Autores: LopeS, Guilherme Carpena, Vieira, Luiz Clovis Cardoso, Araujo, Élito
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/8641908
Resumo: The aim of this in vitro study was to examine the effect of four commercial hydrogen-peroxide-based home bleaching agents on enamel microhardness. Fifteen human molars conserved in water for no more than 3 months were sectioned mesio-distally. The buccal and lingual surfaces were included in self curing acrylic resin, and the 30 specimens were ground until 600 grid (n=6). At baseline, 6 indentations (Vickers) were made on each of the 6 surfaces of each group, under load of 100g for 30s. Bleaching procedure was performed for 2 weeks with: 4.5% hydrogen-peroxide (Perfecta, Premier), 5.5% hydrogen-peroxide (DayWhite, Discus Dental), 7.5% hydrogenperoxide (DayWhite, Discus Dental), a polyethylene-strip whitening system containing 5.3% hydrogen-peroxide (Whitestrips, Procter&Gamble) and 10% carbamide peroxide (Opalescence, Ultradent) was used as control. After bleaching time, the specimens were rinsed and maintained in fresh artificial saliva, changed daily. A t-test compared each bleaching agent before and after treatment. The results showed that none of the five commercial home bleaching agents reduced the enamel microhardness. I t was concluded that all the five commercial home bleaching agents evaluated in our study showed no adverse effects on enamel microhardness.
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spelling Effect of hydrogen-peroxide-based home bleaching agents on enamel hardnessHydrogen-peroxide. Carbamide peroxide. Bleaching. Enamel. HardnessOdontologiaThe aim of this in vitro study was to examine the effect of four commercial hydrogen-peroxide-based home bleaching agents on enamel microhardness. Fifteen human molars conserved in water for no more than 3 months were sectioned mesio-distally. The buccal and lingual surfaces were included in self curing acrylic resin, and the 30 specimens were ground until 600 grid (n=6). At baseline, 6 indentations (Vickers) were made on each of the 6 surfaces of each group, under load of 100g for 30s. Bleaching procedure was performed for 2 weeks with: 4.5% hydrogen-peroxide (Perfecta, Premier), 5.5% hydrogen-peroxide (DayWhite, Discus Dental), 7.5% hydrogenperoxide (DayWhite, Discus Dental), a polyethylene-strip whitening system containing 5.3% hydrogen-peroxide (Whitestrips, Procter&Gamble) and 10% carbamide peroxide (Opalescence, Ultradent) was used as control. After bleaching time, the specimens were rinsed and maintained in fresh artificial saliva, changed daily. A t-test compared each bleaching agent before and after treatment. The results showed that none of the five commercial home bleaching agents reduced the enamel microhardness. I t was concluded that all the five commercial home bleaching agents evaluated in our study showed no adverse effects on enamel microhardness.Universidade Estadual de Campinas2015-11-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/864190810.20396/bjos.v5i18.8641908Brazilian Journal of Oral Sciences; v. 5 n. 18 (2006): Jul./Sept.; 1090-1093Brazilian Journal of Oral Sciences; Vol. 5 No. 18 (2006): Jul./Sept.; 1090-10931677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPenghttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641908/9406Ferreira, Isana ÁlvaresLopeS, Guilherme CarpenaVieira, Luiz Clovis CardosoAraujo, Élitoinfo:eu-repo/semantics/openAccess2016-02-25T09:26:24Zoai:ojs.periodicos.sbu.unicamp.br:article/8641908Revistahttps://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:2016-02-25T09:26:24Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
title Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
spellingShingle Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
Ferreira, Isana Álvares
Hydrogen-peroxide. Carbamide peroxide. Bleaching. Enamel. Hardness
Odontologia
title_short Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
title_full Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
title_fullStr Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
title_full_unstemmed Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
title_sort Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
author Ferreira, Isana Álvares
author_facet Ferreira, Isana Álvares
LopeS, Guilherme Carpena
Vieira, Luiz Clovis Cardoso
Araujo, Élito
author_role author
author2 LopeS, Guilherme Carpena
Vieira, Luiz Clovis Cardoso
Araujo, Élito
author2_role author
author
author
dc.contributor.author.fl_str_mv Ferreira, Isana Álvares
LopeS, Guilherme Carpena
Vieira, Luiz Clovis Cardoso
Araujo, Élito
dc.subject.por.fl_str_mv Hydrogen-peroxide. Carbamide peroxide. Bleaching. Enamel. Hardness
Odontologia
topic Hydrogen-peroxide. Carbamide peroxide. Bleaching. Enamel. Hardness
Odontologia
description The aim of this in vitro study was to examine the effect of four commercial hydrogen-peroxide-based home bleaching agents on enamel microhardness. Fifteen human molars conserved in water for no more than 3 months were sectioned mesio-distally. The buccal and lingual surfaces were included in self curing acrylic resin, and the 30 specimens were ground until 600 grid (n=6). At baseline, 6 indentations (Vickers) were made on each of the 6 surfaces of each group, under load of 100g for 30s. Bleaching procedure was performed for 2 weeks with: 4.5% hydrogen-peroxide (Perfecta, Premier), 5.5% hydrogen-peroxide (DayWhite, Discus Dental), 7.5% hydrogenperoxide (DayWhite, Discus Dental), a polyethylene-strip whitening system containing 5.3% hydrogen-peroxide (Whitestrips, Procter&Gamble) and 10% carbamide peroxide (Opalescence, Ultradent) was used as control. After bleaching time, the specimens were rinsed and maintained in fresh artificial saliva, changed daily. A t-test compared each bleaching agent before and after treatment. The results showed that none of the five commercial home bleaching agents reduced the enamel microhardness. I t was concluded that all the five commercial home bleaching agents evaluated in our study showed no adverse effects on enamel microhardness.
publishDate 2015
dc.date.none.fl_str_mv 2015-11-26
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/8641908
10.20396/bjos.v5i18.8641908
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641908
identifier_str_mv 10.20396/bjos.v5i18.8641908
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/8641908/9406
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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. 5 n. 18 (2006): Jul./Sept.; 1090-1093
Brazilian Journal of Oral Sciences; Vol. 5 No. 18 (2006): Jul./Sept.; 1090-1093
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
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