In vitro interactions between lactic acid solution and art glass-ionomer cements

Detalhes bibliográficos
Autor(a) principal: Wang, Linda
Data de Publicação: 2009
Outros Autores: Cefaly, Daniela Francisca Gigo, Santos, Janaína Lima dos, Santos, Jean Rodrigo dos, Lauris, José Roberto Pereira, Mondelli, Rafael Francisco Lia, Atta, Maria Teresa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: https://www.revistas.usp.br/jaos/article/view/3687
Resumo: OBJECTIVES: Production of acids such as lactic acid contributes to establish a cariogenic environment that leads to dental substrate demineralization. Fluoride plays an important role in this case and, as fluoride-releasing materials, glass-ionomer cements are expected to contribute to minimize deleterious reactions. This study evaluated interactions of glass-ionomer cements used in atraumatic restorative treatment (ART-GICs) with an aqueous lactic acid solution, testing the null hypotheses that no changes occur in the pH of the solution or on the surface roughness and mass of the ART-GICs when exposed to lactic acid solution over a 6-week period. MATERIAL AND METHODS: Ketac Molar, Fuji IX, Vitro Molar and Magic Glass were tested, and compared to Filtek Z250 and Ketac Fil Plus as control groups. Six specimens of each material were made according to manufacturers' instructions. The pH of the solution and roughness and mass changes of each specimen were determined over 6 weeks. Each specimen was individually stored in 2 mL of 0.02 M lactic acid solution for 1 week, renewing the solution every week. pH of solution and mass of the specimens were monitored weekly, and surface roughness of the specimens was assessed before and at the end of the 6-week acid challenge. pH and mass data were analyzed statistically by repeated measures using one-way ANOVA and Tukey's post-hoc tests for each material. Paired t-tests were used for roughness analysis. Tukey's post-hoc tests were applied to verify differences of final roughness among the materials. Significance level was set at 5%. RESULTS: The null hypotheses were partially rejected. All materials were able to increase the pH of the lactic acid solution and presented rougher surfaces after immersion, while mass change was minimal and generally not statistically significant. CONCLUSIONS: These findings can be helpful to predict the performance of these materials under clinical conditions. A protective action against the carious process with significant surface damage due to erosion may be expected.
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spelling In vitro interactions between lactic acid solution and art glass-ionomer cements Glass-ionomer cementsAtraumatic restorative treatmentLactic acidpH OBJECTIVES: Production of acids such as lactic acid contributes to establish a cariogenic environment that leads to dental substrate demineralization. Fluoride plays an important role in this case and, as fluoride-releasing materials, glass-ionomer cements are expected to contribute to minimize deleterious reactions. This study evaluated interactions of glass-ionomer cements used in atraumatic restorative treatment (ART-GICs) with an aqueous lactic acid solution, testing the null hypotheses that no changes occur in the pH of the solution or on the surface roughness and mass of the ART-GICs when exposed to lactic acid solution over a 6-week period. MATERIAL AND METHODS: Ketac Molar, Fuji IX, Vitro Molar and Magic Glass were tested, and compared to Filtek Z250 and Ketac Fil Plus as control groups. Six specimens of each material were made according to manufacturers' instructions. The pH of the solution and roughness and mass changes of each specimen were determined over 6 weeks. Each specimen was individually stored in 2 mL of 0.02 M lactic acid solution for 1 week, renewing the solution every week. pH of solution and mass of the specimens were monitored weekly, and surface roughness of the specimens was assessed before and at the end of the 6-week acid challenge. pH and mass data were analyzed statistically by repeated measures using one-way ANOVA and Tukey's post-hoc tests for each material. Paired t-tests were used for roughness analysis. Tukey's post-hoc tests were applied to verify differences of final roughness among the materials. Significance level was set at 5%. RESULTS: The null hypotheses were partially rejected. All materials were able to increase the pH of the lactic acid solution and presented rougher surfaces after immersion, while mass change was minimal and generally not statistically significant. CONCLUSIONS: These findings can be helpful to predict the performance of these materials under clinical conditions. A protective action against the carious process with significant surface damage due to erosion may be expected. Universidade de São Paulo. Faculdade de Odontologia de Bauru2009-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/368710.1590/S1678-77572009000400002Journal of Applied Oral Science; Vol. 17 No. 4 (2009); 274-279 Journal of Applied Oral Science; Vol. 17 Núm. 4 (2009); 274-279 Journal of Applied Oral Science; v. 17 n. 4 (2009); 274-279 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/3687/4377Copyright (c) 2009 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessWang, LindaCefaly, Daniela Francisca GigoSantos, Janaína Lima dosSantos, Jean Rodrigo dosLauris, José Roberto PereiraMondelli, Rafael Francisco LiaAtta, Maria Teresa2012-04-27T12:05:23Zoai:revistas.usp.br:article/3687Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2012-04-27T12:05:23Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv In vitro interactions between lactic acid solution and art glass-ionomer cements
title In vitro interactions between lactic acid solution and art glass-ionomer cements
spellingShingle In vitro interactions between lactic acid solution and art glass-ionomer cements
Wang, Linda
Glass-ionomer cements
Atraumatic restorative treatment
Lactic acid
pH
title_short In vitro interactions between lactic acid solution and art glass-ionomer cements
title_full In vitro interactions between lactic acid solution and art glass-ionomer cements
title_fullStr In vitro interactions between lactic acid solution and art glass-ionomer cements
title_full_unstemmed In vitro interactions between lactic acid solution and art glass-ionomer cements
title_sort In vitro interactions between lactic acid solution and art glass-ionomer cements
author Wang, Linda
author_facet Wang, Linda
Cefaly, Daniela Francisca Gigo
Santos, Janaína Lima dos
Santos, Jean Rodrigo dos
Lauris, José Roberto Pereira
Mondelli, Rafael Francisco Lia
Atta, Maria Teresa
author_role author
author2 Cefaly, Daniela Francisca Gigo
Santos, Janaína Lima dos
Santos, Jean Rodrigo dos
Lauris, José Roberto Pereira
Mondelli, Rafael Francisco Lia
Atta, Maria Teresa
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Wang, Linda
Cefaly, Daniela Francisca Gigo
Santos, Janaína Lima dos
Santos, Jean Rodrigo dos
Lauris, José Roberto Pereira
Mondelli, Rafael Francisco Lia
Atta, Maria Teresa
dc.subject.por.fl_str_mv Glass-ionomer cements
Atraumatic restorative treatment
Lactic acid
pH
topic Glass-ionomer cements
Atraumatic restorative treatment
Lactic acid
pH
description OBJECTIVES: Production of acids such as lactic acid contributes to establish a cariogenic environment that leads to dental substrate demineralization. Fluoride plays an important role in this case and, as fluoride-releasing materials, glass-ionomer cements are expected to contribute to minimize deleterious reactions. This study evaluated interactions of glass-ionomer cements used in atraumatic restorative treatment (ART-GICs) with an aqueous lactic acid solution, testing the null hypotheses that no changes occur in the pH of the solution or on the surface roughness and mass of the ART-GICs when exposed to lactic acid solution over a 6-week period. MATERIAL AND METHODS: Ketac Molar, Fuji IX, Vitro Molar and Magic Glass were tested, and compared to Filtek Z250 and Ketac Fil Plus as control groups. Six specimens of each material were made according to manufacturers' instructions. The pH of the solution and roughness and mass changes of each specimen were determined over 6 weeks. Each specimen was individually stored in 2 mL of 0.02 M lactic acid solution for 1 week, renewing the solution every week. pH of solution and mass of the specimens were monitored weekly, and surface roughness of the specimens was assessed before and at the end of the 6-week acid challenge. pH and mass data were analyzed statistically by repeated measures using one-way ANOVA and Tukey's post-hoc tests for each material. Paired t-tests were used for roughness analysis. Tukey's post-hoc tests were applied to verify differences of final roughness among the materials. Significance level was set at 5%. RESULTS: The null hypotheses were partially rejected. All materials were able to increase the pH of the lactic acid solution and presented rougher surfaces after immersion, while mass change was minimal and generally not statistically significant. CONCLUSIONS: These findings can be helpful to predict the performance of these materials under clinical conditions. A protective action against the carious process with significant surface damage due to erosion may be expected.
publishDate 2009
dc.date.none.fl_str_mv 2009-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/jaos/article/view/3687
10.1590/S1678-77572009000400002
url https://www.revistas.usp.br/jaos/article/view/3687
identifier_str_mv 10.1590/S1678-77572009000400002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/jaos/article/view/3687/4377
dc.rights.driver.fl_str_mv Copyright (c) 2009 Journal of Applied Oral Science
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2009 Journal of Applied Oral Science
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
dc.source.none.fl_str_mv Journal of Applied Oral Science; Vol. 17 No. 4 (2009); 274-279
Journal of Applied Oral Science; Vol. 17 Núm. 4 (2009); 274-279
Journal of Applied Oral Science; v. 17 n. 4 (2009); 274-279
1678-7765
1678-7757
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
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