Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/224274 |
Resumo: | Purpose: To evaluate the effect of time of fluoride application gel, acidulated or neutral, on in vitro enamel resistance to demineralization and fluoride uptake. Materials and Methods: One hundred and ninety-two human enamel blocks were used in this study and 144 were treated with fluoride gel, acidulated or neutral, for 1 or 4 minutes. Ninety-six blocks treated with fluoride and 24 control blocks were submitted to a high cariogenic challenge. After the pH-cycling, enamel demineralization was assessed by surface and cross-sectional microhardness. Fluoride in the enamel blocks was also determined after removing an enamel layer by etching acid. Results: Acidulated fluoride gel formed more fluoride in enamel than neutral gel (P< 0.05), and it was also more efficient in reducing the demineralization of the enamel blocks submitted to a cariogenic challenge than the neutral one (P< 0.05). It was found that the time of application was significant in terms of fluoride uptake, but it did not render the enamel more resistant to demineralization. |
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Repositório Institucional da UNESP |
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spelling |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel cariesPurpose: To evaluate the effect of time of fluoride application gel, acidulated or neutral, on in vitro enamel resistance to demineralization and fluoride uptake. Materials and Methods: One hundred and ninety-two human enamel blocks were used in this study and 144 were treated with fluoride gel, acidulated or neutral, for 1 or 4 minutes. Ninety-six blocks treated with fluoride and 24 control blocks were submitted to a high cariogenic challenge. After the pH-cycling, enamel demineralization was assessed by surface and cross-sectional microhardness. Fluoride in the enamel blocks was also determined after removing an enamel layer by etching acid. Results: Acidulated fluoride gel formed more fluoride in enamel than neutral gel (P< 0.05), and it was also more efficient in reducing the demineralization of the enamel blocks submitted to a cariogenic challenge than the neutral one (P< 0.05). It was found that the time of application was significant in terms of fluoride uptake, but it did not render the enamel more resistant to demineralization.Faculdade de Odontol. de Piracicaba UNICAMP, Av. Limeira 901, CEP 13414-900, Piracicaba, SPDepartment of Pediatric Dentistry Fac. of Dent. of Araçatuba UNESP, Araçatuba, São PauloDepartment of Physiological Sciences Faculty of Dentistry of Piracicaba UNICAMP, Piracicaba, São PauloDepartment of Pediatric Dentistry Fac. of Dent. of Araçatuba UNESP, Araçatuba, São PauloUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)Delbem, Alberto Carlos Botazzo [UNESP]Cury, Jaime A.2022-04-28T19:55:34Z2022-04-28T19:55:34Z2002-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article169-172American Journal of Dentistry, v. 15, n. 3, p. 169-172, 2002.0894-8275http://hdl.handle.net/11449/2242742-s2.0-0036615613Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAmerican Journal of Dentistryinfo:eu-repo/semantics/openAccess2022-04-28T19:55:34Zoai:repositorio.unesp.br:11449/224274Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:59:08.953822Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
title |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
spellingShingle |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries Delbem, Alberto Carlos Botazzo [UNESP] |
title_short |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
title_full |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
title_fullStr |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
title_full_unstemmed |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
title_sort |
Effect of application time of APF and NaF gels on microhardness and fluoride uptake of in vitro enamel caries |
author |
Delbem, Alberto Carlos Botazzo [UNESP] |
author_facet |
Delbem, Alberto Carlos Botazzo [UNESP] Cury, Jaime A. |
author_role |
author |
author2 |
Cury, Jaime A. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Delbem, Alberto Carlos Botazzo [UNESP] Cury, Jaime A. |
description |
Purpose: To evaluate the effect of time of fluoride application gel, acidulated or neutral, on in vitro enamel resistance to demineralization and fluoride uptake. Materials and Methods: One hundred and ninety-two human enamel blocks were used in this study and 144 were treated with fluoride gel, acidulated or neutral, for 1 or 4 minutes. Ninety-six blocks treated with fluoride and 24 control blocks were submitted to a high cariogenic challenge. After the pH-cycling, enamel demineralization was assessed by surface and cross-sectional microhardness. Fluoride in the enamel blocks was also determined after removing an enamel layer by etching acid. Results: Acidulated fluoride gel formed more fluoride in enamel than neutral gel (P< 0.05), and it was also more efficient in reducing the demineralization of the enamel blocks submitted to a cariogenic challenge than the neutral one (P< 0.05). It was found that the time of application was significant in terms of fluoride uptake, but it did not render the enamel more resistant to demineralization. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-06-01 2022-04-28T19:55:34Z 2022-04-28T19:55:34Z |
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. 15, n. 3, p. 169-172, 2002. 0894-8275 http://hdl.handle.net/11449/224274 2-s2.0-0036615613 |
identifier_str_mv |
American Journal of Dentistry, v. 15, n. 3, p. 169-172, 2002. 0894-8275 2-s2.0-0036615613 |
url |
http://hdl.handle.net/11449/224274 |
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 |
169-172 |
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 |
|
_version_ |
1808129145762217984 |