Peroxide penetration from the pulp chamber to the external root surface after internal bleaching
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226025 |
Resumo: | Purpose: To quantify the amount of peroxide penetration from the pulp chamber to the external surface of teeth during the walking bleaching technique. Methods: Seventy-two bovine lateral incisors were randomly divided over five experimental groups and one control (n= 12 per group): (1) 35% hydrogen peroxide (HP); (2) 35% carbamide peroxide (CP); (3) sodium perborate (SP); (4) (HP+SP); (5) (CP+SP) and (6) Control (CG), deionized water. All groups were treated according to the walking bleach technique. After 7 days at 37°C in an acetate buffer solution, 100 μl violet leukocrystal coloring and 50 μl peroxidase was added, producing a blue stain that could be measured in a spectrophotometer and then converted into peroxide μg/ml. Results: G5 exhibited the greatest penetration, while G2 and G3 produced the lowest values. All bleaching agents penetrated from the pulp chamber to the external root surface. There was a direct correlation between the presence of oxidative agents and penetration potential. Sodium perborate in distilled water was less oxidative and appeared to be the least aggressive bleaching agent. |
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Repositório Institucional da UNESP |
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2946 |
spelling |
Peroxide penetration from the pulp chamber to the external root surface after internal bleachingPurpose: To quantify the amount of peroxide penetration from the pulp chamber to the external surface of teeth during the walking bleaching technique. Methods: Seventy-two bovine lateral incisors were randomly divided over five experimental groups and one control (n= 12 per group): (1) 35% hydrogen peroxide (HP); (2) 35% carbamide peroxide (CP); (3) sodium perborate (SP); (4) (HP+SP); (5) (CP+SP) and (6) Control (CG), deionized water. All groups were treated according to the walking bleach technique. After 7 days at 37°C in an acetate buffer solution, 100 μl violet leukocrystal coloring and 50 μl peroxidase was added, producing a blue stain that could be measured in a spectrophotometer and then converted into peroxide μg/ml. Results: G5 exhibited the greatest penetration, while G2 and G3 produced the lowest values. All bleaching agents penetrated from the pulp chamber to the external root surface. There was a direct correlation between the presence of oxidative agents and penetration potential. Sodium perborate in distilled water was less oxidative and appeared to be the least aggressive bleaching agent.Department of Endodontics São Paulo State University, Araraquara, SPDepartment of Biochemistry São Paulo State University, São José dos Campos, SPUniversity of Connecticut, Farmington, CTDepartment of Endodontics São Paulo State University, Araraquara, SPDepartment of Biochemistry São Paulo State University, São José dos Campos, SPUniversidade Estadual Paulista (UNESP)University of ConnecticutPalo, Renato Miotto [UNESP]Valera, Marcia Carneiro [UNESP]Camargo, Samira Esteves Afonso [UNESP]Camargo, Carlos Henrique Ribeiro [UNESP]Cardoso, Paula Elaine [UNESP]Mancini, Maria Nadir Gasparoto [UNESP]Pameijer, Cornelis H.2022-04-28T21:24:25Z2022-04-28T21:24:25Z2010-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article171-174American Journal of Dentistry, v. 23, n. 3, p. 171-174, 2010.0894-8275http://hdl.handle.net/11449/2260252-s2.0-77956224518Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAmerican Journal of Dentistryinfo:eu-repo/semantics/openAccess2022-04-28T21:24:25Zoai:repositorio.unesp.br:11449/226025Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T21:24:25Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
title |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
spellingShingle |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching Palo, Renato Miotto [UNESP] |
title_short |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
title_full |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
title_fullStr |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
title_full_unstemmed |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
title_sort |
Peroxide penetration from the pulp chamber to the external root surface after internal bleaching |
author |
Palo, Renato Miotto [UNESP] |
author_facet |
Palo, Renato Miotto [UNESP] Valera, Marcia Carneiro [UNESP] Camargo, Samira Esteves Afonso [UNESP] Camargo, Carlos Henrique Ribeiro [UNESP] Cardoso, Paula Elaine [UNESP] Mancini, Maria Nadir Gasparoto [UNESP] Pameijer, Cornelis H. |
author_role |
author |
author2 |
Valera, Marcia Carneiro [UNESP] Camargo, Samira Esteves Afonso [UNESP] Camargo, Carlos Henrique Ribeiro [UNESP] Cardoso, Paula Elaine [UNESP] Mancini, Maria Nadir Gasparoto [UNESP] Pameijer, Cornelis H. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University of Connecticut |
dc.contributor.author.fl_str_mv |
Palo, Renato Miotto [UNESP] Valera, Marcia Carneiro [UNESP] Camargo, Samira Esteves Afonso [UNESP] Camargo, Carlos Henrique Ribeiro [UNESP] Cardoso, Paula Elaine [UNESP] Mancini, Maria Nadir Gasparoto [UNESP] Pameijer, Cornelis H. |
description |
Purpose: To quantify the amount of peroxide penetration from the pulp chamber to the external surface of teeth during the walking bleaching technique. Methods: Seventy-two bovine lateral incisors were randomly divided over five experimental groups and one control (n= 12 per group): (1) 35% hydrogen peroxide (HP); (2) 35% carbamide peroxide (CP); (3) sodium perborate (SP); (4) (HP+SP); (5) (CP+SP) and (6) Control (CG), deionized water. All groups were treated according to the walking bleach technique. After 7 days at 37°C in an acetate buffer solution, 100 μl violet leukocrystal coloring and 50 μl peroxidase was added, producing a blue stain that could be measured in a spectrophotometer and then converted into peroxide μg/ml. Results: G5 exhibited the greatest penetration, while G2 and G3 produced the lowest values. All bleaching agents penetrated from the pulp chamber to the external root surface. There was a direct correlation between the presence of oxidative agents and penetration potential. Sodium perborate in distilled water was less oxidative and appeared to be the least aggressive bleaching agent. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-06-01 2022-04-28T21:24:25Z 2022-04-28T21:24:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
American Journal of Dentistry, v. 23, n. 3, p. 171-174, 2010. 0894-8275 http://hdl.handle.net/11449/226025 2-s2.0-77956224518 |
identifier_str_mv |
American Journal of Dentistry, v. 23, n. 3, p. 171-174, 2010. 0894-8275 2-s2.0-77956224518 |
url |
http://hdl.handle.net/11449/226025 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
American Journal of Dentistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
171-174 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797790256222699520 |