Dental bleaching agents with calcium and their effects on enamel microhardness and morphology

Detalhes bibliográficos
Autor(a) principal: Pizani, Andréia Mara Andrade
Data de Publicação: 2015
Outros Autores: Tholt, Beatriz, Dias, Katia Regina Hostilio Cervantes, Albuquerque, Pedro Paulo Albuquerque Cavacanti de, Queiroz, Celso Silva
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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spelling 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
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