Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface

Detalhes bibliográficos
Autor(a) principal: Escalante-Otárola, Wilfredo Gustavo [UNESP]
Data de Publicação: 2018
Outros Autores: Castro-Núñez, Gabriela Mariana [UNESP], Jordão-Basso, Keren Cristina Fagundes [UNESP], Guimarães, Bruno Martini, Palma-Dibb, Regina Guenka, Kuga, Milton Carlos [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.jdent.2018.06.002
http://hdl.handle.net/11449/176472
Resumo: Objectives: To evaluate the effect of desensitizing agent containing calcium phosphate nanoparticles on the bond strength of etch-and-rinse adhesive system (Scotchbond Multi-Purpose), presence of precipitate, dentinal tubule obliteration and hybrid layer formation in dentin in comparison with potassium nitrate plus sodium fluoride or strontium chloride compounds. Methods: 150 bovine incisors were treated with (n = 10): G1, Desensibilize Nano P (Ca3(PO4)2+5%KNO3+0.9%NaF); G2, Desensibilize (10%SrCl2+5%KNO3); G3, Desensibilize KF2% (5%KNO3+0.2%NaF); G4, Ultra EZ (3%KNO3+0.25%NaF) and G5, no treated (control). Scanning electron microscopy was used to assess the incidence of precipitates (500×) and obliterated dentinal tubule counts (1.000×). The adhesive system was used after all desensitization treatments. The bond strength (n = 40) and the fracture pattern were evaluated. Confocal laser microscopy was used to quantify the hybrid layer formation in dentin. Results: G1 and G2 presented higher adhesive system bond strength (MPa) than G4 and G5, however no significant differences were observed in comparison with G3. Cohesive fracture was frequently found: G1 (58.5%), G2 (51.3%) and G3 (43.8%). G1 showed the highest incidence of precipitates and the highest number of blocked dentinal tubules. G1 and G2 presented similar hybrid layer formation and the highest hybrid layer formation values. Conclusions: Desensibilize Nano P (G1) favored the bond strength of the adhesive system to dentin, increased the precipitation of residues, obliteration of dentinal tubules, and hybrid layer formation in comparison with other agents. Clinical relevance: Desensitizers promote dentin obliteration, however, may affect dentin bonding.
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spelling Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interfaceBond strengthDentin adhesiveDentin hypersensitivityDesensitizing agentsHybrid layerScanning electron microscopyObjectives: To evaluate the effect of desensitizing agent containing calcium phosphate nanoparticles on the bond strength of etch-and-rinse adhesive system (Scotchbond Multi-Purpose), presence of precipitate, dentinal tubule obliteration and hybrid layer formation in dentin in comparison with potassium nitrate plus sodium fluoride or strontium chloride compounds. Methods: 150 bovine incisors were treated with (n = 10): G1, Desensibilize Nano P (Ca3(PO4)2+5%KNO3+0.9%NaF); G2, Desensibilize (10%SrCl2+5%KNO3); G3, Desensibilize KF2% (5%KNO3+0.2%NaF); G4, Ultra EZ (3%KNO3+0.25%NaF) and G5, no treated (control). Scanning electron microscopy was used to assess the incidence of precipitates (500×) and obliterated dentinal tubule counts (1.000×). The adhesive system was used after all desensitization treatments. The bond strength (n = 40) and the fracture pattern were evaluated. Confocal laser microscopy was used to quantify the hybrid layer formation in dentin. Results: G1 and G2 presented higher adhesive system bond strength (MPa) than G4 and G5, however no significant differences were observed in comparison with G3. Cohesive fracture was frequently found: G1 (58.5%), G2 (51.3%) and G3 (43.8%). G1 showed the highest incidence of precipitates and the highest number of blocked dentinal tubules. G1 and G2 presented similar hybrid layer formation and the highest hybrid layer formation values. Conclusions: Desensibilize Nano P (G1) favored the bond strength of the adhesive system to dentin, increased the precipitation of residues, obliteration of dentinal tubules, and hybrid layer formation in comparison with other agents. Clinical relevance: Desensitizers promote dentin obliteration, however, may affect dentin bonding.Restorative Dentistry Department Araraquara Dental School São Paulo State University (Unesp)Dentistry Endodontic and Dental Materials Department Bauru Dental School São Paulo UniversityRestorative Dentistry Department Ribeirão Preto Dental School São Paulo UniversityRestorative Dentistry Department Araraquara Dental School São Paulo State University (Unesp)Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Escalante-Otárola, Wilfredo Gustavo [UNESP]Castro-Núñez, Gabriela Mariana [UNESP]Jordão-Basso, Keren Cristina Fagundes [UNESP]Guimarães, Bruno MartiniPalma-Dibb, Regina GuenkaKuga, Milton Carlos [UNESP]2018-12-11T17:20:55Z2018-12-11T17:20:55Z2018-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article98-104application/pdfhttp://dx.doi.org/10.1016/j.jdent.2018.06.002Journal of Dentistry, v. 75, p. 98-104.0300-5712http://hdl.handle.net/11449/17647210.1016/j.jdent.2018.06.0022-s2.0-850487216242-s2.0-85048721624.pdf1627568419811788Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Dentistry1,919info:eu-repo/semantics/openAccess2024-09-27T18:04:09Zoai:repositorio.unesp.br:11449/176472Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-27T18:04:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
title Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
spellingShingle Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
Escalante-Otárola, Wilfredo Gustavo [UNESP]
Bond strength
Dentin adhesive
Dentin hypersensitivity
Desensitizing agents
Hybrid layer
Scanning electron microscopy
title_short Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
title_full Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
title_fullStr Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
title_full_unstemmed Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
title_sort Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
author Escalante-Otárola, Wilfredo Gustavo [UNESP]
author_facet Escalante-Otárola, Wilfredo Gustavo [UNESP]
Castro-Núñez, Gabriela Mariana [UNESP]
Jordão-Basso, Keren Cristina Fagundes [UNESP]
Guimarães, Bruno Martini
Palma-Dibb, Regina Guenka
Kuga, Milton Carlos [UNESP]
author_role author
author2 Castro-Núñez, Gabriela Mariana [UNESP]
Jordão-Basso, Keren Cristina Fagundes [UNESP]
Guimarães, Bruno Martini
Palma-Dibb, Regina Guenka
Kuga, Milton Carlos [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Escalante-Otárola, Wilfredo Gustavo [UNESP]
Castro-Núñez, Gabriela Mariana [UNESP]
Jordão-Basso, Keren Cristina Fagundes [UNESP]
Guimarães, Bruno Martini
Palma-Dibb, Regina Guenka
Kuga, Milton Carlos [UNESP]
dc.subject.por.fl_str_mv Bond strength
Dentin adhesive
Dentin hypersensitivity
Desensitizing agents
Hybrid layer
Scanning electron microscopy
topic Bond strength
Dentin adhesive
Dentin hypersensitivity
Desensitizing agents
Hybrid layer
Scanning electron microscopy
description Objectives: To evaluate the effect of desensitizing agent containing calcium phosphate nanoparticles on the bond strength of etch-and-rinse adhesive system (Scotchbond Multi-Purpose), presence of precipitate, dentinal tubule obliteration and hybrid layer formation in dentin in comparison with potassium nitrate plus sodium fluoride or strontium chloride compounds. Methods: 150 bovine incisors were treated with (n = 10): G1, Desensibilize Nano P (Ca3(PO4)2+5%KNO3+0.9%NaF); G2, Desensibilize (10%SrCl2+5%KNO3); G3, Desensibilize KF2% (5%KNO3+0.2%NaF); G4, Ultra EZ (3%KNO3+0.25%NaF) and G5, no treated (control). Scanning electron microscopy was used to assess the incidence of precipitates (500×) and obliterated dentinal tubule counts (1.000×). The adhesive system was used after all desensitization treatments. The bond strength (n = 40) and the fracture pattern were evaluated. Confocal laser microscopy was used to quantify the hybrid layer formation in dentin. Results: G1 and G2 presented higher adhesive system bond strength (MPa) than G4 and G5, however no significant differences were observed in comparison with G3. Cohesive fracture was frequently found: G1 (58.5%), G2 (51.3%) and G3 (43.8%). G1 showed the highest incidence of precipitates and the highest number of blocked dentinal tubules. G1 and G2 presented similar hybrid layer formation and the highest hybrid layer formation values. Conclusions: Desensibilize Nano P (G1) favored the bond strength of the adhesive system to dentin, increased the precipitation of residues, obliteration of dentinal tubules, and hybrid layer formation in comparison with other agents. Clinical relevance: Desensitizers promote dentin obliteration, however, may affect dentin bonding.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T17:20:55Z
2018-12-11T17:20:55Z
2018-08-01
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/10.1016/j.jdent.2018.06.002
Journal of Dentistry, v. 75, p. 98-104.
0300-5712
http://hdl.handle.net/11449/176472
10.1016/j.jdent.2018.06.002
2-s2.0-85048721624
2-s2.0-85048721624.pdf
1627568419811788
url http://dx.doi.org/10.1016/j.jdent.2018.06.002
http://hdl.handle.net/11449/176472
identifier_str_mv Journal of Dentistry, v. 75, p. 98-104.
0300-5712
10.1016/j.jdent.2018.06.002
2-s2.0-85048721624
2-s2.0-85048721624.pdf
1627568419811788
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Dentistry
1,919
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 98-104
application/pdf
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 repositoriounesp@unesp.br
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