Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | https://www.revistas.usp.br/jaos/article/view/158695 |
Resumo: | Objective: To assess pulp oxygen saturation levels (SaO2) in maxillary central incisors after dental bleaching. Materials and Methods: 80 participants (160 teeth) were randomly allocated to four groups: G1 In-office bleaching with two applications of 35% hydrogen peroxide (HP) (20 minutes), followed by at-home bleaching with 10% carbamide peroxide (CP) (2 hours/day for 16 days); G2 - Same protocol as G1, plus desensitizing toothpaste; G3 - Inoffice bleaching with 35% HP and one application of placebo gel (20 minutes), followed by at-home bleaching with 10% CP (2 hours/day for 16 days); and G4 - Same protocol as G3, plus desensitizing toothpaste. Pulp SaO2 levels were measured before (T0) and immediately after (T1) in-office bleaching; on the 5th (T2), 8th (T3), 12th (T4), and 16th days of at-home bleaching (T5); and on the 7th (T6) and 30th (T7) days. Mean (SD) pulp SaO2 levels were compared within groups by generalized estimating equations (GEE) and Student’s t-test (P<0.05). Results: Mean pulp SaO2 at T0 was 84.29% in G1, 84.38% in G2, 84.79% in G3, and 85.83% in G4. At T1, these values decreased to 81.96%, 82.06%, 82.19%, and 81.15% in G1, G2, G3, and G4 respectively, with significant difference in G4 (P<0.05). During home bleaching, pulp SaO2 levels varied in all groups, with 86.55%, 86.60%, 85.71%, and 87.15% means at T7 for G1, G2, G3, and G4, respectively; G2 presented significant difference (P<0.05). Conclusions: Pulp SaO2 level in maxillary central incisors was similar at baseline, reducing immediately after in-office bleaching, regardless of using desensitizing toothpaste and increasing at 30 days after dental bleaching. |
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Journal of applied oral science (Online) |
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Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trialDental bleachingDental pulpClinical trialTooth bleachingObjective: To assess pulp oxygen saturation levels (SaO2) in maxillary central incisors after dental bleaching. Materials and Methods: 80 participants (160 teeth) were randomly allocated to four groups: G1 In-office bleaching with two applications of 35% hydrogen peroxide (HP) (20 minutes), followed by at-home bleaching with 10% carbamide peroxide (CP) (2 hours/day for 16 days); G2 - Same protocol as G1, plus desensitizing toothpaste; G3 - Inoffice bleaching with 35% HP and one application of placebo gel (20 minutes), followed by at-home bleaching with 10% CP (2 hours/day for 16 days); and G4 - Same protocol as G3, plus desensitizing toothpaste. Pulp SaO2 levels were measured before (T0) and immediately after (T1) in-office bleaching; on the 5th (T2), 8th (T3), 12th (T4), and 16th days of at-home bleaching (T5); and on the 7th (T6) and 30th (T7) days. Mean (SD) pulp SaO2 levels were compared within groups by generalized estimating equations (GEE) and Student’s t-test (P<0.05). Results: Mean pulp SaO2 at T0 was 84.29% in G1, 84.38% in G2, 84.79% in G3, and 85.83% in G4. At T1, these values decreased to 81.96%, 82.06%, 82.19%, and 81.15% in G1, G2, G3, and G4 respectively, with significant difference in G4 (P<0.05). During home bleaching, pulp SaO2 levels varied in all groups, with 86.55%, 86.60%, 85.71%, and 87.15% means at T7 for G1, G2, G3, and G4, respectively; G2 presented significant difference (P<0.05). Conclusions: Pulp SaO2 level in maxillary central incisors was similar at baseline, reducing immediately after in-office bleaching, regardless of using desensitizing toothpaste and increasing at 30 days after dental bleaching.Universidade de São Paulo. Faculdade de Odontologia de Bauru2019-06-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/15869510.1590/1678-7757-2018-0442Journal of Applied Oral Science; Vol. 27 (2019); e20180442Journal of Applied Oral Science; Vol. 27 (2019); e20180442Journal of Applied Oral Science; v. 27 (2019); e201804421678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/158695/153698Copyright (c) 2019 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessLima, Lorena FerreiraAlencar, Ana Helena Gonçalves deDecurcio, Daniel de AlmeidaSilva, Julio AlmeidaFavarão, Isabella NegroLoureiro, Marco Antônio ZaidenBarletta, Fernando BrancoEstrela, Carlos2019-06-06T16:06:27Zoai:revistas.usp.br:article/158695Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2019-06-06T16:06:27Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
title |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
spellingShingle |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial Lima, Lorena Ferreira Dental bleaching Dental pulp Clinical trial Tooth bleaching |
title_short |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
title_full |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
title_fullStr |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
title_full_unstemmed |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
title_sort |
Effect of dental bleaching on pulp oxygen saturation in maxillary central incisors - a randomized clinical trial |
author |
Lima, Lorena Ferreira |
author_facet |
Lima, Lorena Ferreira Alencar, Ana Helena Gonçalves de Decurcio, Daniel de Almeida Silva, Julio Almeida Favarão, Isabella Negro Loureiro, Marco Antônio Zaiden Barletta, Fernando Branco Estrela, Carlos |
author_role |
author |
author2 |
Alencar, Ana Helena Gonçalves de Decurcio, Daniel de Almeida Silva, Julio Almeida Favarão, Isabella Negro Loureiro, Marco Antônio Zaiden Barletta, Fernando Branco Estrela, Carlos |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Lima, Lorena Ferreira Alencar, Ana Helena Gonçalves de Decurcio, Daniel de Almeida Silva, Julio Almeida Favarão, Isabella Negro Loureiro, Marco Antônio Zaiden Barletta, Fernando Branco Estrela, Carlos |
dc.subject.por.fl_str_mv |
Dental bleaching Dental pulp Clinical trial Tooth bleaching |
topic |
Dental bleaching Dental pulp Clinical trial Tooth bleaching |
description |
Objective: To assess pulp oxygen saturation levels (SaO2) in maxillary central incisors after dental bleaching. Materials and Methods: 80 participants (160 teeth) were randomly allocated to four groups: G1 In-office bleaching with two applications of 35% hydrogen peroxide (HP) (20 minutes), followed by at-home bleaching with 10% carbamide peroxide (CP) (2 hours/day for 16 days); G2 - Same protocol as G1, plus desensitizing toothpaste; G3 - Inoffice bleaching with 35% HP and one application of placebo gel (20 minutes), followed by at-home bleaching with 10% CP (2 hours/day for 16 days); and G4 - Same protocol as G3, plus desensitizing toothpaste. Pulp SaO2 levels were measured before (T0) and immediately after (T1) in-office bleaching; on the 5th (T2), 8th (T3), 12th (T4), and 16th days of at-home bleaching (T5); and on the 7th (T6) and 30th (T7) days. Mean (SD) pulp SaO2 levels were compared within groups by generalized estimating equations (GEE) and Student’s t-test (P<0.05). Results: Mean pulp SaO2 at T0 was 84.29% in G1, 84.38% in G2, 84.79% in G3, and 85.83% in G4. At T1, these values decreased to 81.96%, 82.06%, 82.19%, and 81.15% in G1, G2, G3, and G4 respectively, with significant difference in G4 (P<0.05). During home bleaching, pulp SaO2 levels varied in all groups, with 86.55%, 86.60%, 85.71%, and 87.15% means at T7 for G1, G2, G3, and G4, respectively; G2 presented significant difference (P<0.05). Conclusions: Pulp SaO2 level in maxillary central incisors was similar at baseline, reducing immediately after in-office bleaching, regardless of using desensitizing toothpaste and increasing at 30 days after dental bleaching. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-05 |
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://www.revistas.usp.br/jaos/article/view/158695 10.1590/1678-7757-2018-0442 |
url |
https://www.revistas.usp.br/jaos/article/view/158695 |
identifier_str_mv |
10.1590/1678-7757-2018-0442 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/158695/153698 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Journal of Applied Oral Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science; Vol. 27 (2019); e20180442 Journal of Applied Oral Science; Vol. 27 (2019); e20180442 Journal of Applied Oral Science; v. 27 (2019); e20180442 1678-7765 1678-7757 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1800221681191485440 |