Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques

Detalhes bibliográficos
Autor(a) principal: Briso, André Luiz Fraga [UNESP]
Data de Publicação: 2014
Outros Autores: Rahal, V. [UNESP], Sundfeld, Renato Herman [UNESP], Santos, Paulo Henrique dos [UNESP], Alexandre, R. S. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2341/12-054-L
http://hdl.handle.net/11449/111575
Resumo: The purpose of this study was to analyze the influence of 10% sodium ascorbate (SA) on the hybrid layer, resin tag length, and bond strength to dentin after bleaching. Six groups were tested: G C, control; G SA, sodium ascorbate (SA) + restoration; G CP, bleaching with carbamide peroxide (CP) + restoration; G CP+SA, bleaching with CP + SA+ restoration; G HP, bleaching with 35% hydrogen peroxide (HP) + restoration; and G HP+SA, HP + SA + restoration. After dental bleaching, the dentin was exposed and the antioxidant solution was applied to groups G SA, G CP+SA, and G HP+SA, before bonding procedures. The teeth were sectioned in the mesiodistal direction. One section was decalcified, and the specimens were embedded in paraffin and sectioned in the longitudinal direction with a thickness of 6 gm. Fifteen slices of each specimen were selected according to a systematic sample of slices with an interval proportional to the total number of slices obtained for each tooth. The specimens were stained using the Brown & Brenn method, and an optic microscope was used to analyze the hybrid layer thickness and resin tag length. The remaining tooth segment was sectioned into stick-shaped specimens and used for microtensile bond strength testing (0.5 mm/min). Statistical analysis was performed using two-way analysis of variance and Fisher test. The results for hybrid layer + tag formation (in micrometers) were G C, 13.27 Aa; G SA, 11.85 Ba; G CP, 6.84 Bb; G CP+SA, 9.02 Ab; G HP, 7.28 Bb; and G HP+SA, 9.22 Ab; bond strength results (in MPa) were G C, 49.5 Aa; G SA, 51.7 Aa; G CP, 37.16 Bb; G CP+SA, 47.69 Aa; G HP, 32.39 Ab; and G HP+SA, 39.67 Ab. Tooth bleaching with CP or HP impairs the formation of the hybrid layer and resin tags and reduces the microtensile bond strength. Statistically, the use of SA significantly increases the hybrid layer thickness and resin tag length. The microtensile bond strength values for carbamide peroxide increased, but the microtensile bond strength for hydrogen peroxide was not affected.
id UNSP_5763902be7903eaf5917c94879159443
oai_identifier_str oai:repositorio.unesp.br:11449/111575
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching TechniquesThe purpose of this study was to analyze the influence of 10% sodium ascorbate (SA) on the hybrid layer, resin tag length, and bond strength to dentin after bleaching. Six groups were tested: G C, control; G SA, sodium ascorbate (SA) + restoration; G CP, bleaching with carbamide peroxide (CP) + restoration; G CP+SA, bleaching with CP + SA+ restoration; G HP, bleaching with 35% hydrogen peroxide (HP) + restoration; and G HP+SA, HP + SA + restoration. After dental bleaching, the dentin was exposed and the antioxidant solution was applied to groups G SA, G CP+SA, and G HP+SA, before bonding procedures. The teeth were sectioned in the mesiodistal direction. One section was decalcified, and the specimens were embedded in paraffin and sectioned in the longitudinal direction with a thickness of 6 gm. Fifteen slices of each specimen were selected according to a systematic sample of slices with an interval proportional to the total number of slices obtained for each tooth. The specimens were stained using the Brown & Brenn method, and an optic microscope was used to analyze the hybrid layer thickness and resin tag length. The remaining tooth segment was sectioned into stick-shaped specimens and used for microtensile bond strength testing (0.5 mm/min). Statistical analysis was performed using two-way analysis of variance and Fisher test. The results for hybrid layer + tag formation (in micrometers) were G C, 13.27 Aa; G SA, 11.85 Ba; G CP, 6.84 Bb; G CP+SA, 9.02 Ab; G HP, 7.28 Bb; and G HP+SA, 9.22 Ab; bond strength results (in MPa) were G C, 49.5 Aa; G SA, 51.7 Aa; G CP, 37.16 Bb; G CP+SA, 47.69 Aa; G HP, 32.39 Ab; and G HP+SA, 39.67 Ab. Tooth bleaching with CP or HP impairs the formation of the hybrid layer and resin tags and reduces the microtensile bond strength. Statistically, the use of SA significantly increases the hybrid layer thickness and resin tag length. The microtensile bond strength values for carbamide peroxide increased, but the microtensile bond strength for hydrogen peroxide was not affected.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNESP Univ Estadual Paulista, Aracatuba Dent Sch, Aracatuba, BrazilUNESP Univ Estadual Paulista, Aracatuba Dent Sch, Aracatuba, BrazilFAPESP: 06/55571-9Operative Dentistry IncUniversidade Estadual Paulista (Unesp)Briso, André Luiz Fraga [UNESP]Rahal, V. [UNESP]Sundfeld, Renato Herman [UNESP]Santos, Paulo Henrique dos [UNESP]Alexandre, R. S. [UNESP]2014-12-03T13:08:46Z2014-12-03T13:08:46Z2014-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article195-203application/pdfhttp://dx.doi.org/10.2341/12-054-LOperative Dentistry. Indianapolis: Operative Dentistry Inc, v. 39, n. 2, p. 195-203, 2014.0361-7734http://hdl.handle.net/11449/11157510.2341/12-054-LWOS:000332906100013WOS000332906100013.pdf5761956467234702969334867147301104934798010836220000-0002-4100-5153Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOperative Dentistry2.1301,180info:eu-repo/semantics/openAccess2024-01-25T06:33:31Zoai:repositorio.unesp.br:11449/111575Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-25T06:33:31Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
title Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
spellingShingle Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
Briso, André Luiz Fraga [UNESP]
title_short Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
title_full Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
title_fullStr Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
title_full_unstemmed Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
title_sort Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
author Briso, André Luiz Fraga [UNESP]
author_facet Briso, André Luiz Fraga [UNESP]
Rahal, V. [UNESP]
Sundfeld, Renato Herman [UNESP]
Santos, Paulo Henrique dos [UNESP]
Alexandre, R. S. [UNESP]
author_role author
author2 Rahal, V. [UNESP]
Sundfeld, Renato Herman [UNESP]
Santos, Paulo Henrique dos [UNESP]
Alexandre, R. S. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Briso, André Luiz Fraga [UNESP]
Rahal, V. [UNESP]
Sundfeld, Renato Herman [UNESP]
Santos, Paulo Henrique dos [UNESP]
Alexandre, R. S. [UNESP]
description The purpose of this study was to analyze the influence of 10% sodium ascorbate (SA) on the hybrid layer, resin tag length, and bond strength to dentin after bleaching. Six groups were tested: G C, control; G SA, sodium ascorbate (SA) + restoration; G CP, bleaching with carbamide peroxide (CP) + restoration; G CP+SA, bleaching with CP + SA+ restoration; G HP, bleaching with 35% hydrogen peroxide (HP) + restoration; and G HP+SA, HP + SA + restoration. After dental bleaching, the dentin was exposed and the antioxidant solution was applied to groups G SA, G CP+SA, and G HP+SA, before bonding procedures. The teeth were sectioned in the mesiodistal direction. One section was decalcified, and the specimens were embedded in paraffin and sectioned in the longitudinal direction with a thickness of 6 gm. Fifteen slices of each specimen were selected according to a systematic sample of slices with an interval proportional to the total number of slices obtained for each tooth. The specimens were stained using the Brown & Brenn method, and an optic microscope was used to analyze the hybrid layer thickness and resin tag length. The remaining tooth segment was sectioned into stick-shaped specimens and used for microtensile bond strength testing (0.5 mm/min). Statistical analysis was performed using two-way analysis of variance and Fisher test. The results for hybrid layer + tag formation (in micrometers) were G C, 13.27 Aa; G SA, 11.85 Ba; G CP, 6.84 Bb; G CP+SA, 9.02 Ab; G HP, 7.28 Bb; and G HP+SA, 9.22 Ab; bond strength results (in MPa) were G C, 49.5 Aa; G SA, 51.7 Aa; G CP, 37.16 Bb; G CP+SA, 47.69 Aa; G HP, 32.39 Ab; and G HP+SA, 39.67 Ab. Tooth bleaching with CP or HP impairs the formation of the hybrid layer and resin tags and reduces the microtensile bond strength. Statistically, the use of SA significantly increases the hybrid layer thickness and resin tag length. The microtensile bond strength values for carbamide peroxide increased, but the microtensile bond strength for hydrogen peroxide was not affected.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-03T13:08:46Z
2014-12-03T13:08:46Z
2014-03-01
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 http://dx.doi.org/10.2341/12-054-L
Operative Dentistry. Indianapolis: Operative Dentistry Inc, v. 39, n. 2, p. 195-203, 2014.
0361-7734
http://hdl.handle.net/11449/111575
10.2341/12-054-L
WOS:000332906100013
WOS000332906100013.pdf
5761956467234702
9693348671473011
0493479801083622
0000-0002-4100-5153
url http://dx.doi.org/10.2341/12-054-L
http://hdl.handle.net/11449/111575
identifier_str_mv Operative Dentistry. Indianapolis: Operative Dentistry Inc, v. 39, n. 2, p. 195-203, 2014.
0361-7734
10.2341/12-054-L
WOS:000332906100013
WOS000332906100013.pdf
5761956467234702
9693348671473011
0493479801083622
0000-0002-4100-5153
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Operative Dentistry
2.130
1,180
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 195-203
application/pdf
dc.publisher.none.fl_str_mv Operative Dentistry Inc
publisher.none.fl_str_mv Operative Dentistry Inc
dc.source.none.fl_str_mv Web of Science
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_ 1799965724019523584