Evaluation of dentin desensitization protocols on the dentinal surface and their effects on the dentin bond interface
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
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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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 |
_version_ |
1813546468045225984 |