In vitro study of the pulp chamber temperature rise during light-activated bleaching
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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/3596 |
Resumo: | This study evaluated in vitro the pulp chamber temperature rise induced by the light-activated dental bleaching technique using different light sources. The root portions of 78 extracted sound human mandibular incisors were sectioned approximately 2 mm below the cementoenamel junction. The root cavities of the crowns were enlarged to facilitate the correct placing of the sensor into the pulp chamber. Half of specimens (n=39) was assigned to receive a 35% hydrogen peroxide gel on the buccal surface and the other halt (n=39) not to receive the bleaching agent. Three groups (n=13) were formed for each condition (bleach or no bleach) according to the use of 3 light sources recommended for dental bleaching: a light-emitting diode (LED)laser system, a LED unit and a conventional halogen light. The light sources were positioned perpendicular to the buccal surface at a distance of 5 mm and activated during 30 s. The differences between the initial and the highest temperature readings for each specimen were obtained, and, from the temperature changes, the means for each specimen and each group were calculated. The values of temperature rise were compared using Kruskal-Wallis test at 1% significance level. Temperature rise varied significantly depending on the light-curing unit, with statistically significant differences (p;0.01). When the bleaching agent was applied, there were significant differences among groups (p |
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Journal of applied oral science (Online) |
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In vitro study of the pulp chamber temperature rise during light-activated bleaching Tooth bleachingDental pulp cavity This study evaluated in vitro the pulp chamber temperature rise induced by the light-activated dental bleaching technique using different light sources. The root portions of 78 extracted sound human mandibular incisors were sectioned approximately 2 mm below the cementoenamel junction. The root cavities of the crowns were enlarged to facilitate the correct placing of the sensor into the pulp chamber. Half of specimens (n=39) was assigned to receive a 35% hydrogen peroxide gel on the buccal surface and the other halt (n=39) not to receive the bleaching agent. Three groups (n=13) were formed for each condition (bleach or no bleach) according to the use of 3 light sources recommended for dental bleaching: a light-emitting diode (LED)laser system, a LED unit and a conventional halogen light. The light sources were positioned perpendicular to the buccal surface at a distance of 5 mm and activated during 30 s. The differences between the initial and the highest temperature readings for each specimen were obtained, and, from the temperature changes, the means for each specimen and each group were calculated. The values of temperature rise were compared using Kruskal-Wallis test at 1% significance level. Temperature rise varied significantly depending on the light-curing unit, with statistically significant differences (p;0.01). When the bleaching agent was applied, there were significant differences among groups (pUniversidade de São Paulo. Faculdade de Odontologia de Bauru2008-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/359610.1590/S1678-77572008000500010Journal of Applied Oral Science; Vol. 16 No. 5 (2008); 355-359 Journal of Applied Oral Science; Vol. 16 Núm. 5 (2008); 355-359 Journal of Applied Oral Science; v. 16 n. 5 (2008); 355-359 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/3596/4286Copyright (c) 2008 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessCarrasco, Thaise GracieleCarrasco-Guerisoli, Laise DanielaFröner, Izabel Cristina2012-04-27T12:01:46Zoai:revistas.usp.br:article/3596Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2012-04-27T12:01:46Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
title |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
spellingShingle |
In vitro study of the pulp chamber temperature rise during light-activated bleaching Carrasco, Thaise Graciele Tooth bleaching Dental pulp cavity |
title_short |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
title_full |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
title_fullStr |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
title_full_unstemmed |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
title_sort |
In vitro study of the pulp chamber temperature rise during light-activated bleaching |
author |
Carrasco, Thaise Graciele |
author_facet |
Carrasco, Thaise Graciele Carrasco-Guerisoli, Laise Daniela Fröner, Izabel Cristina |
author_role |
author |
author2 |
Carrasco-Guerisoli, Laise Daniela Fröner, Izabel Cristina |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Carrasco, Thaise Graciele Carrasco-Guerisoli, Laise Daniela Fröner, Izabel Cristina |
dc.subject.por.fl_str_mv |
Tooth bleaching Dental pulp cavity |
topic |
Tooth bleaching Dental pulp cavity |
description |
This study evaluated in vitro the pulp chamber temperature rise induced by the light-activated dental bleaching technique using different light sources. The root portions of 78 extracted sound human mandibular incisors were sectioned approximately 2 mm below the cementoenamel junction. The root cavities of the crowns were enlarged to facilitate the correct placing of the sensor into the pulp chamber. Half of specimens (n=39) was assigned to receive a 35% hydrogen peroxide gel on the buccal surface and the other halt (n=39) not to receive the bleaching agent. Three groups (n=13) were formed for each condition (bleach or no bleach) according to the use of 3 light sources recommended for dental bleaching: a light-emitting diode (LED)laser system, a LED unit and a conventional halogen light. The light sources were positioned perpendicular to the buccal surface at a distance of 5 mm and activated during 30 s. The differences between the initial and the highest temperature readings for each specimen were obtained, and, from the temperature changes, the means for each specimen and each group were calculated. The values of temperature rise were compared using Kruskal-Wallis test at 1% significance level. Temperature rise varied significantly depending on the light-curing unit, with statistically significant differences (p;0.01). When the bleaching agent was applied, there were significant differences among groups (p |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-10-01 |
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://www.revistas.usp.br/jaos/article/view/3596 10.1590/S1678-77572008000500010 |
url |
https://www.revistas.usp.br/jaos/article/view/3596 |
identifier_str_mv |
10.1590/S1678-77572008000500010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/3596/4286 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2008 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2008 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. 16 No. 5 (2008); 355-359 Journal of Applied Oral Science; Vol. 16 Núm. 5 (2008); 355-359 Journal of Applied Oral Science; v. 16 n. 5 (2008); 355-359 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_ |
1787713190681903104 |