Dental bleaching agents with calcium and their effects on enamel microhardness and morphology
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian journal of oral sciences (Online) |
Texto Completo: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640831 |
Resumo: | Aim: To evaluate enamel microhardness and morphology after bleaching with hydrogen peroxide containing calcium in different concentrations. Methods: One hundred specimens of human teeth were ground and polished and had the initial microhardness evaluated. The specimens were randomly assigned into five groups (n=20): Group 1 - Control group (no treatment); Group 2 - Home Peroxide 6% (without calcium); Group 3 - Home Peroxide 7.5% (without calcium); Group 4 - White Class 6% (with calcium); Group 5 - White Class 7.5% (with calcium). For each group, the bleaching was performed according to the manufacturer’s specifications. The specimens were bleached once a day for 5 days and subjected to pH cycling. Microhardness and scanning electron microscopy (SEM) analysis were performed before and after bleaching. Results: The results showed that groups submitted to bleaching treatment presented hardness loss compared to the control group. The group of 7.5% hydrogen peroxide with calcium showed a lower percentage of hardness loss in relation to other groups. Conclusion: Calcium in association with a higher hydrogen peroxide concentration may decrease microhardness changes on enamel. |
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Brazilian journal of oral sciences (Online) |
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Dental bleaching agents with calcium and their effects on enamel microhardness and morphologyBleaching agentsCalciumHydrogen peroxideDental enamelOdontologiaAim: To evaluate enamel microhardness and morphology after bleaching with hydrogen peroxide containing calcium in different concentrations. Methods: One hundred specimens of human teeth were ground and polished and had the initial microhardness evaluated. The specimens were randomly assigned into five groups (n=20): Group 1 - Control group (no treatment); Group 2 - Home Peroxide 6% (without calcium); Group 3 - Home Peroxide 7.5% (without calcium); Group 4 - White Class 6% (with calcium); Group 5 - White Class 7.5% (with calcium). For each group, the bleaching was performed according to the manufacturer’s specifications. The specimens were bleached once a day for 5 days and subjected to pH cycling. Microhardness and scanning electron microscopy (SEM) analysis were performed before and after bleaching. Results: The results showed that groups submitted to bleaching treatment presented hardness loss compared to the control group. The group of 7.5% hydrogen peroxide with calcium showed a lower percentage of hardness loss in relation to other groups. Conclusion: Calcium in association with a higher hydrogen peroxide concentration may decrease microhardness changes on enamel.Universidade Estadual de Campinas2015-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640831Brazilian Journal of Oral Sciences; v. 14 n. 2 (2015): Apr./Jun.; 154-158Brazilian Journal of Oral Sciences; Vol. 14 No. 2 (2015): Apr./Jun.; 154-1581677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640831/8363Copyright (c) 2015 Andréia Mara Andrade Pizani, Beatriz Tholt, Katia Regina Hostilio Cervantes Dias, Pedro Paulo Albuquerque Cavacanti de Albuquerque, Celso Silva Queirozhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPizani, Andréia Mara AndradeTholt, BeatrizDias, Katia Regina Hostilio CervantesAlbuquerque, Pedro Paulo Albuquerque Cavacanti deQueiroz, Celso Silva2023-10-02T13:52:38Zoai:ojs.periodicos.sbu.unicamp.br:article/8640831Revistahttps://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:2023-10-02T13:52:38Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
title |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
spellingShingle |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology Pizani, Andréia Mara Andrade Bleaching agents Calcium Hydrogen peroxide Dental enamel Odontologia |
title_short |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
title_full |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
title_fullStr |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
title_full_unstemmed |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
title_sort |
Dental bleaching agents with calcium and their effects on enamel microhardness and morphology |
author |
Pizani, Andréia Mara Andrade |
author_facet |
Pizani, Andréia Mara Andrade Tholt, Beatriz Dias, Katia Regina Hostilio Cervantes Albuquerque, Pedro Paulo Albuquerque Cavacanti de Queiroz, Celso Silva |
author_role |
author |
author2 |
Tholt, Beatriz Dias, Katia Regina Hostilio Cervantes Albuquerque, Pedro Paulo Albuquerque Cavacanti de Queiroz, Celso Silva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pizani, Andréia Mara Andrade Tholt, Beatriz Dias, Katia Regina Hostilio Cervantes Albuquerque, Pedro Paulo Albuquerque Cavacanti de Queiroz, Celso Silva |
dc.subject.por.fl_str_mv |
Bleaching agents Calcium Hydrogen peroxide Dental enamel Odontologia |
topic |
Bleaching agents Calcium Hydrogen peroxide Dental enamel Odontologia |
description |
Aim: To evaluate enamel microhardness and morphology after bleaching with hydrogen peroxide containing calcium in different concentrations. Methods: One hundred specimens of human teeth were ground and polished and had the initial microhardness evaluated. The specimens were randomly assigned into five groups (n=20): Group 1 - Control group (no treatment); Group 2 - Home Peroxide 6% (without calcium); Group 3 - Home Peroxide 7.5% (without calcium); Group 4 - White Class 6% (with calcium); Group 5 - White Class 7.5% (with calcium). For each group, the bleaching was performed according to the manufacturer’s specifications. The specimens were bleached once a day for 5 days and subjected to pH cycling. Microhardness and scanning electron microscopy (SEM) analysis were performed before and after bleaching. Results: The results showed that groups submitted to bleaching treatment presented hardness loss compared to the control group. The group of 7.5% hydrogen peroxide with calcium showed a lower percentage of hardness loss in relation to other groups. Conclusion: Calcium in association with a higher hydrogen peroxide concentration may decrease microhardness changes on enamel. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07-01 |
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/8640831 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640831 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640831/8363 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
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. 14 n. 2 (2015): Apr./Jun.; 154-158 Brazilian Journal of Oral Sciences; Vol. 14 No. 2 (2015): Apr./Jun.; 154-158 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_ |
1800216397690699776 |