Effect of acid etching time on demineralization of primary and permanent coronal dentin

Detalhes bibliográficos
Autor(a) principal: Scheffel, Débora Lopes Salles [UNESP]
Data de Publicação: 2012
Outros Autores: Tenuta, Lívia Maria Andaló, Cury, Jaime Aparecido, Hebling, Josimeri [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/226980
Resumo: Purpose: To determine the effect of acid etching time on dentin calcium solubilization and to compare the solubilization rate of primary and permanent dentin when etched for the same period of time. Methods: Flat coronal dentin surfaces were produced on primary (n=8) and permanent (n=8) sound teeth. Three 2 mm-diameter areas were delimited on each surface and assigned to 5, 10 or 15 seconds of acid etching. Five microliters of 35% H3PO4 were applied on each area during the preset times, and 4 uL were retrieved for analysis. The amount of calcium was determined colorimetrically using Arsenazo III reagent and expressed as ug Ca/mm2 of dentin. Data were subjected to two-way ANOVA, Tukey's test and linear regression (α=5%). Results: For both primary and permanent dentin, a statistically significant correlation was observed between acid etching time and calcium concentration (primary dentin R2= 0.79; permanent dentin R2= 0.73). Mean (sd) values of dissolved primary dentin after 5, 10 and 15 seconds were 1.00 (0.25), 1.74 (0.11) and 2.30 (0.42), whereas for permanent dentin the values were 0.47 (0.13), 0.89 (0.36) and 1.38 (0.20) ug Ca/mm2, respectively. Greater calcium solubilization (P< 0.05) was detected for primary dentin than for permanent dentin after all acid etching times. © 2012 P & G.
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spelling Effect of acid etching time on demineralization of primary and permanent coronal dentinPurpose: To determine the effect of acid etching time on dentin calcium solubilization and to compare the solubilization rate of primary and permanent dentin when etched for the same period of time. Methods: Flat coronal dentin surfaces were produced on primary (n=8) and permanent (n=8) sound teeth. Three 2 mm-diameter areas were delimited on each surface and assigned to 5, 10 or 15 seconds of acid etching. Five microliters of 35% H3PO4 were applied on each area during the preset times, and 4 uL were retrieved for analysis. The amount of calcium was determined colorimetrically using Arsenazo III reagent and expressed as ug Ca/mm2 of dentin. Data were subjected to two-way ANOVA, Tukey's test and linear regression (α=5%). Results: For both primary and permanent dentin, a statistically significant correlation was observed between acid etching time and calcium concentration (primary dentin R2= 0.79; permanent dentin R2= 0.73). Mean (sd) values of dissolved primary dentin after 5, 10 and 15 seconds were 1.00 (0.25), 1.74 (0.11) and 2.30 (0.42), whereas for permanent dentin the values were 0.47 (0.13), 0.89 (0.36) and 1.38 (0.20) ug Ca/mm2, respectively. Greater calcium solubilization (P< 0.05) was detected for primary dentin than for permanent dentin after all acid etching times. © 2012 P & G.Department of Orthodontics and Pediatric Dentistry Araraquara School of Dentistry UNESP - Paulista State University, Araraquara, Sao PauloDepartment of Physiological Sciences Piracicaba Dental School University of Campinas, Piracicaba, Sao PauloFaculty of Dentistry of Araraquara - UNESP, Rua Humaita, 1680, 14801-903 Araraquara, SPDepartment of Orthodontics and Pediatric Dentistry Araraquara School of Dentistry UNESP - Paulista State University, Araraquara, Sao PauloFaculty of Dentistry of Araraquara - UNESP, Rua Humaita, 1680, 14801-903 Araraquara, SPUniversidade Estadual Paulista (UNESP)Universidade Estadual de Campinas (UNICAMP)Scheffel, Débora Lopes Salles [UNESP]Tenuta, Lívia Maria AndalóCury, Jaime AparecidoHebling, Josimeri [UNESP]2022-04-29T04:59:19Z2022-04-29T04:59:19Z2012-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article235-238American Journal of Dentistry, v. 25, n. 4, p. 235-238, 2012.0894-8275http://hdl.handle.net/11449/2269802-s2.0-84867026817Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAmerican Journal of Dentistryinfo:eu-repo/semantics/openAccess2024-09-26T14:21:13Zoai:repositorio.unesp.br:11449/226980Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-26T14:21:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effect of acid etching time on demineralization of primary and permanent coronal dentin
title Effect of acid etching time on demineralization of primary and permanent coronal dentin
spellingShingle Effect of acid etching time on demineralization of primary and permanent coronal dentin
Scheffel, Débora Lopes Salles [UNESP]
title_short Effect of acid etching time on demineralization of primary and permanent coronal dentin
title_full Effect of acid etching time on demineralization of primary and permanent coronal dentin
title_fullStr Effect of acid etching time on demineralization of primary and permanent coronal dentin
title_full_unstemmed Effect of acid etching time on demineralization of primary and permanent coronal dentin
title_sort Effect of acid etching time on demineralization of primary and permanent coronal dentin
author Scheffel, Débora Lopes Salles [UNESP]
author_facet Scheffel, Débora Lopes Salles [UNESP]
Tenuta, Lívia Maria Andaló
Cury, Jaime Aparecido
Hebling, Josimeri [UNESP]
author_role author
author2 Tenuta, Lívia Maria Andaló
Cury, Jaime Aparecido
Hebling, Josimeri [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade Estadual de Campinas (UNICAMP)
dc.contributor.author.fl_str_mv Scheffel, Débora Lopes Salles [UNESP]
Tenuta, Lívia Maria Andaló
Cury, Jaime Aparecido
Hebling, Josimeri [UNESP]
description Purpose: To determine the effect of acid etching time on dentin calcium solubilization and to compare the solubilization rate of primary and permanent dentin when etched for the same period of time. Methods: Flat coronal dentin surfaces were produced on primary (n=8) and permanent (n=8) sound teeth. Three 2 mm-diameter areas were delimited on each surface and assigned to 5, 10 or 15 seconds of acid etching. Five microliters of 35% H3PO4 were applied on each area during the preset times, and 4 uL were retrieved for analysis. The amount of calcium was determined colorimetrically using Arsenazo III reagent and expressed as ug Ca/mm2 of dentin. Data were subjected to two-way ANOVA, Tukey's test and linear regression (α=5%). Results: For both primary and permanent dentin, a statistically significant correlation was observed between acid etching time and calcium concentration (primary dentin R2= 0.79; permanent dentin R2= 0.73). Mean (sd) values of dissolved primary dentin after 5, 10 and 15 seconds were 1.00 (0.25), 1.74 (0.11) and 2.30 (0.42), whereas for permanent dentin the values were 0.47 (0.13), 0.89 (0.36) and 1.38 (0.20) ug Ca/mm2, respectively. Greater calcium solubilization (P< 0.05) was detected for primary dentin than for permanent dentin after all acid etching times. © 2012 P & G.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-01
2022-04-29T04:59:19Z
2022-04-29T04:59:19Z
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. 25, n. 4, p. 235-238, 2012.
0894-8275
http://hdl.handle.net/11449/226980
2-s2.0-84867026817
identifier_str_mv American Journal of Dentistry, v. 25, n. 4, p. 235-238, 2012.
0894-8275
2-s2.0-84867026817
url http://hdl.handle.net/11449/226980
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 235-238
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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