Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1159/000513444 http://hdl.handle.net/11449/207910 |
Resumo: | This study investigated the protective effect of experimental solutions containing 4 polymers (polyoxirane, hydroxypropylmethylcellulose [HPMC], pectin, and an amino methacrylate copolymer [AMC]) in 2 concentrations (low and high) associated or not with sodium fluoride (F; 225 ppm F-) or sodium fluoride plus stannous chloride (FS; 800 ppm Sn2+) on the dissolution of hydroxyapatite crystals (HA). Deionized water was the control. The pretreated HA was added to a 0.3% citric acid solution (pH 3.8). An automatic titrant machine added aliquots of 0.1 N HCl at a rate of 28 μL/min, in a total reaction time of 5 min. Groups were compared with 2-way ANOVA and Tukey's test, and concentrations with Student t test (5%). The zeta potential of the HA treated with the solutions was measured. Significant differences were found for both factors and interaction (p < 0.0001). The treatments with F and FS solutions resulted in a lower amount of dissolved HA than the control. Among the polymers' solutions, only AMC was able to reduce the amount of dissolved HA, changing the surface charge of HA to positive. AMC improved the protective effect of F, but it did not affect FS. Polyoxirane and HPMC reduced the protective potential of the FS solution. No differences were found between the concentrations of the polymers. It was concluded that F and FS reduced the amount of dissolved HA. The protective effect of the experimental solutions against HA dissolution was polymer dependent. The F effect was enhanced by its combination with AMC, but the protection of FS was impaired by polyoxirane and HPMC. |
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Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite DissolutionThis study investigated the protective effect of experimental solutions containing 4 polymers (polyoxirane, hydroxypropylmethylcellulose [HPMC], pectin, and an amino methacrylate copolymer [AMC]) in 2 concentrations (low and high) associated or not with sodium fluoride (F; 225 ppm F-) or sodium fluoride plus stannous chloride (FS; 800 ppm Sn2+) on the dissolution of hydroxyapatite crystals (HA). Deionized water was the control. The pretreated HA was added to a 0.3% citric acid solution (pH 3.8). An automatic titrant machine added aliquots of 0.1 N HCl at a rate of 28 μL/min, in a total reaction time of 5 min. Groups were compared with 2-way ANOVA and Tukey's test, and concentrations with Student t test (5%). The zeta potential of the HA treated with the solutions was measured. Significant differences were found for both factors and interaction (p < 0.0001). The treatments with F and FS solutions resulted in a lower amount of dissolved HA than the control. Among the polymers' solutions, only AMC was able to reduce the amount of dissolved HA, changing the surface charge of HA to positive. AMC improved the protective effect of F, but it did not affect FS. Polyoxirane and HPMC reduced the protective potential of the FS solution. No differences were found between the concentrations of the polymers. It was concluded that F and FS reduced the amount of dissolved HA. The protective effect of the experimental solutions against HA dissolution was polymer dependent. The F effect was enhanced by its combination with AMC, but the protection of FS was impaired by polyoxirane and HPMC.Department of Restorative Dentistry Institute of Science and Technology São Paulo State University UnespDepartment of Restorative Dentistry School of Dentistry University of São PauloDepartment of Chemical Engineering Polytechnic School University of São PauloDepartment of Cariology Operative Dentistry and Dental Public Health Indiana University School of DentistryDepartment of Restorative Dentistry Institute of Science and Technology São José Dos Campos São José Dos Campos, Avenida Engenheiro Francisco José Longo, 777Department of Restorative Dentistry Institute of Science and Technology São Paulo State University UnespUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Indiana University School of DentistrySão José Dos CamposAugusto, Marina Gullo [UNESP]Santos, Tamires Maria De Andrade [UNESP]Scaramucci, TaísAoki, Idalina VieiraTorres, Carlos Rocha Gomes [UNESP]Hara, Anderson TakeoBorges, Alessandra Buhler [UNESP]2021-06-25T11:03:06Z2021-06-25T11:03:06Z2021-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article122-129http://dx.doi.org/10.1159/000513444Caries Research, v. 55, n. 2, p. 122-129, 2021.1421-976X0008-6568http://hdl.handle.net/11449/20791010.1159/0005134442-s2.0-85100356970Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCaries Researchinfo:eu-repo/semantics/openAccess2021-10-23T17:51:54Zoai:repositorio.unesp.br:11449/207910Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T17:51:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
title |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
spellingShingle |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution Augusto, Marina Gullo [UNESP] |
title_short |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
title_full |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
title_fullStr |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
title_full_unstemmed |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
title_sort |
Protective Effect of Solutions Containing Polymers Associated with Fluoride and Stannous Chloride on Hydroxyapatite Dissolution |
author |
Augusto, Marina Gullo [UNESP] |
author_facet |
Augusto, Marina Gullo [UNESP] Santos, Tamires Maria De Andrade [UNESP] Scaramucci, Taís Aoki, Idalina Vieira Torres, Carlos Rocha Gomes [UNESP] Hara, Anderson Takeo Borges, Alessandra Buhler [UNESP] |
author_role |
author |
author2 |
Santos, Tamires Maria De Andrade [UNESP] Scaramucci, Taís Aoki, Idalina Vieira Torres, Carlos Rocha Gomes [UNESP] Hara, Anderson Takeo Borges, Alessandra Buhler [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Indiana University School of Dentistry São José Dos Campos |
dc.contributor.author.fl_str_mv |
Augusto, Marina Gullo [UNESP] Santos, Tamires Maria De Andrade [UNESP] Scaramucci, Taís Aoki, Idalina Vieira Torres, Carlos Rocha Gomes [UNESP] Hara, Anderson Takeo Borges, Alessandra Buhler [UNESP] |
description |
This study investigated the protective effect of experimental solutions containing 4 polymers (polyoxirane, hydroxypropylmethylcellulose [HPMC], pectin, and an amino methacrylate copolymer [AMC]) in 2 concentrations (low and high) associated or not with sodium fluoride (F; 225 ppm F-) or sodium fluoride plus stannous chloride (FS; 800 ppm Sn2+) on the dissolution of hydroxyapatite crystals (HA). Deionized water was the control. The pretreated HA was added to a 0.3% citric acid solution (pH 3.8). An automatic titrant machine added aliquots of 0.1 N HCl at a rate of 28 μL/min, in a total reaction time of 5 min. Groups were compared with 2-way ANOVA and Tukey's test, and concentrations with Student t test (5%). The zeta potential of the HA treated with the solutions was measured. Significant differences were found for both factors and interaction (p < 0.0001). The treatments with F and FS solutions resulted in a lower amount of dissolved HA than the control. Among the polymers' solutions, only AMC was able to reduce the amount of dissolved HA, changing the surface charge of HA to positive. AMC improved the protective effect of F, but it did not affect FS. Polyoxirane and HPMC reduced the protective potential of the FS solution. No differences were found between the concentrations of the polymers. It was concluded that F and FS reduced the amount of dissolved HA. The protective effect of the experimental solutions against HA dissolution was polymer dependent. The F effect was enhanced by its combination with AMC, but the protection of FS was impaired by polyoxirane and HPMC. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:03:06Z 2021-06-25T11:03:06Z 2021-04-01 |
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/10.1159/000513444 Caries Research, v. 55, n. 2, p. 122-129, 2021. 1421-976X 0008-6568 http://hdl.handle.net/11449/207910 10.1159/000513444 2-s2.0-85100356970 |
url |
http://dx.doi.org/10.1159/000513444 http://hdl.handle.net/11449/207910 |
identifier_str_mv |
Caries Research, v. 55, n. 2, p. 122-129, 2021. 1421-976X 0008-6568 10.1159/000513444 2-s2.0-85100356970 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Caries Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
122-129 |
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_ |
1799965652437434368 |