Effect of hydrogen-peroxide-based home bleaching agents on enamel hardness
Autor(a) principal: | |
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Data de Publicação: | 2015 |
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/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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UNICAMP-8 |
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Brazilian journal of oral sciences (Online) |
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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 |
_version_ |
1800216400595255296 |