Effect of Sodium Ascorbate on Dentin Bonding After Two Bleaching Techniques
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
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. |
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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 |