Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/1942 |
Resumo: | Objective: This study’s aim was to quantify the hydrogen peroxide (HP) penetration into the pulp chamber of teeth submitted to different protocols of bleaching. Material and Methods: Ninety premolars were randomly divided into nine groups according to the bleaching agent protocol (n = 10): control (no bleaching), carbamide peroxide 10% [10% CP], carbamide peroxide 16% [16% CP], carbamide peroxide 22% [22% CP], hydrogen peroxide 4% [4% HP], hydrogen peroxide 6% [6% HP], hydrogen peroxide 7.5% [7.5% HP], hydrogen peroxide 10% [10% HP] and hydrogen peroxide 35% [35% HP]. The penetration of HP was measured via spectrophotometric analysis of the acetate buffer solution from the pulp chamber. The absorbance of the resulting solution was determined in a spectrophotometer and converted into equivalent concentration of HP (?g/ mL). To analyze the concentration of HP, the titration of bleaching agents with potassium permanganate was used. Data were subjected to ANOVA and Tukey’s test for pairwise comparison (? = 0.05). Results: Higher concentration of HP in the pulp chamber was found in the HP 35% group (p < 0.0001). No significant difference between at-home protocols were observed (p = 0.64). Titration values showed that the concentration of the products was similar to that claimed by the manufacturer. Conclusion: It follows that the amount of HP that reaches the pulp chamber is not proportional to the concentration of whitening gels, but depends on the application time recommended by the manufacturers.KEYWORDSAt-home bleaching; Dental enamel permeability; Inoffice bleaching; Tooth bleaching. |
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oai:ojs.pkp.sfu.ca:article/1942 |
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Brazilian Dental Science |
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Initial and pulp chamber concentration of hydrogen peroxide using different bleaching productsObjective: This study’s aim was to quantify the hydrogen peroxide (HP) penetration into the pulp chamber of teeth submitted to different protocols of bleaching. Material and Methods: Ninety premolars were randomly divided into nine groups according to the bleaching agent protocol (n = 10): control (no bleaching), carbamide peroxide 10% [10% CP], carbamide peroxide 16% [16% CP], carbamide peroxide 22% [22% CP], hydrogen peroxide 4% [4% HP], hydrogen peroxide 6% [6% HP], hydrogen peroxide 7.5% [7.5% HP], hydrogen peroxide 10% [10% HP] and hydrogen peroxide 35% [35% HP]. The penetration of HP was measured via spectrophotometric analysis of the acetate buffer solution from the pulp chamber. The absorbance of the resulting solution was determined in a spectrophotometer and converted into equivalent concentration of HP (?g/ mL). To analyze the concentration of HP, the titration of bleaching agents with potassium permanganate was used. Data were subjected to ANOVA and Tukey’s test for pairwise comparison (? = 0.05). Results: Higher concentration of HP in the pulp chamber was found in the HP 35% group (p < 0.0001). No significant difference between at-home protocols were observed (p = 0.64). Titration values showed that the concentration of the products was similar to that claimed by the manufacturer. Conclusion: It follows that the amount of HP that reaches the pulp chamber is not proportional to the concentration of whitening gels, but depends on the application time recommended by the manufacturers.KEYWORDSAt-home bleaching; Dental enamel permeability; Inoffice bleaching; Tooth bleaching. Institute of Science and Technology of São José dos Campos2020-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfimage/jpegimage/jpegimage/jpegimage/jpegapplication/mswordapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/194210.14295/bds.2020.v23i2.1942Brazilian Dental Science; Vol. 23 No. 2 (2020): : Apr. - Jun. / 2020 - Published Apr. 2020; 8 p.Brazilian Dental Science; v. 23 n. 2 (2020): : Apr. - Jun. / 2020 - Published Apr. 2020; 8 p.2178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/1942/1486https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4002https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4003https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4004https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4005https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4006https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4007Copyright (c) 2020 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessParreiras, Sibelli OlivieriFavoreto, Michael WillianCruz, Gustavo PereiraGomes, AndersonBorges, Christiane Philippini FerreiraLoguercio, Alessandro DReis, Alessandra2020-06-30T17:27:17Zoai:ojs.pkp.sfu.ca:article/1942Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:27.998592Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
title |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
spellingShingle |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products Parreiras, Sibelli Olivieri |
title_short |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
title_full |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
title_fullStr |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
title_full_unstemmed |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
title_sort |
Initial and pulp chamber concentration of hydrogen peroxide using different bleaching products |
author |
Parreiras, Sibelli Olivieri |
author_facet |
Parreiras, Sibelli Olivieri Favoreto, Michael Willian Cruz, Gustavo Pereira Gomes, Anderson Borges, Christiane Philippini Ferreira Loguercio, Alessandro D Reis, Alessandra |
author_role |
author |
author2 |
Favoreto, Michael Willian Cruz, Gustavo Pereira Gomes, Anderson Borges, Christiane Philippini Ferreira Loguercio, Alessandro D Reis, Alessandra |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Parreiras, Sibelli Olivieri Favoreto, Michael Willian Cruz, Gustavo Pereira Gomes, Anderson Borges, Christiane Philippini Ferreira Loguercio, Alessandro D Reis, Alessandra |
description |
Objective: This study’s aim was to quantify the hydrogen peroxide (HP) penetration into the pulp chamber of teeth submitted to different protocols of bleaching. Material and Methods: Ninety premolars were randomly divided into nine groups according to the bleaching agent protocol (n = 10): control (no bleaching), carbamide peroxide 10% [10% CP], carbamide peroxide 16% [16% CP], carbamide peroxide 22% [22% CP], hydrogen peroxide 4% [4% HP], hydrogen peroxide 6% [6% HP], hydrogen peroxide 7.5% [7.5% HP], hydrogen peroxide 10% [10% HP] and hydrogen peroxide 35% [35% HP]. The penetration of HP was measured via spectrophotometric analysis of the acetate buffer solution from the pulp chamber. The absorbance of the resulting solution was determined in a spectrophotometer and converted into equivalent concentration of HP (?g/ mL). To analyze the concentration of HP, the titration of bleaching agents with potassium permanganate was used. Data were subjected to ANOVA and Tukey’s test for pairwise comparison (? = 0.05). Results: Higher concentration of HP in the pulp chamber was found in the HP 35% group (p < 0.0001). No significant difference between at-home protocols were observed (p = 0.64). Titration values showed that the concentration of the products was similar to that claimed by the manufacturer. Conclusion: It follows that the amount of HP that reaches the pulp chamber is not proportional to the concentration of whitening gels, but depends on the application time recommended by the manufacturers.KEYWORDSAt-home bleaching; Dental enamel permeability; Inoffice bleaching; Tooth bleaching. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-03-31 |
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://ojs.ict.unesp.br/index.php/cob/article/view/1942 10.14295/bds.2020.v23i2.1942 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/1942 |
identifier_str_mv |
10.14295/bds.2020.v23i2.1942 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1942/1486 https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4002 https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4003 https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4004 https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4005 https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4006 https://ojs.ict.unesp.br/index.php/cob/article/view/1942/4007 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf image/jpeg image/jpeg image/jpeg image/jpeg application/msword application/pdf |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 23 No. 2 (2020): : Apr. - Jun. / 2020 - Published Apr. 2020; 8 p. Brazilian Dental Science; v. 23 n. 2 (2020): : Apr. - Jun. / 2020 - Published Apr. 2020; 8 p. 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346901401174016 |