In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge

Detalhes bibliográficos
Autor(a) principal: Ribeiro, Talitha Rodrigues
Data de Publicação: 2008
Outros Autores: Duarte, Rosângela Marques, Silva, Fábia Danielle Sales Cunha Medeiros e, Forte, Franklin Delano Soares, Sampaio, Fábio Correia, Barbosa, Juliana Karla Guedes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista odonto ciência (Online)
Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2807
Resumo: Purpose: This in vitro study used microhardness testing to assess the enamel demineralization induced by artificial caries lesions adjacent to restorative materials. Methods: Two conventional (MAXXION R® and VIDRION R®) and one resin-modified (VITREMER®) glass ionomer cements and one non-fluoridated composite resin (Z-250®) were tested. Standard cavities were prepared in 160 bovine enamel blocks. The enamel blocks were randomly divided into 4 experimental groups (n=40) according to the material used. After the initial microhardness measurement, the enamel blocks were restored and subjected to thermal and pH cycling, simulating cariogenic challenge. Microhardness measurements were performed on the enamel blocks to calculate the loss of enamel surface hardness. Data were analyzed by analysis of variance and Tukey test (α VIDRION R > MAXXION R. Conclusion: The enamel adjacent to the conventional glass ionomer cements showed less demineralization than the enamel adjacent to resin-modified materials. Key words: Caries inhibition; fluoride; glass-ionomer cements
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spelling In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challengeAvaliação in vitro da microdureza do esmalte adjacente a restaurações após desafio cariogênicoCaries inhibitionfluorideglass-ionomer cementsDental caries preventionPurpose: This in vitro study used microhardness testing to assess the enamel demineralization induced by artificial caries lesions adjacent to restorative materials. Methods: Two conventional (MAXXION R® and VIDRION R®) and one resin-modified (VITREMER®) glass ionomer cements and one non-fluoridated composite resin (Z-250®) were tested. Standard cavities were prepared in 160 bovine enamel blocks. The enamel blocks were randomly divided into 4 experimental groups (n=40) according to the material used. After the initial microhardness measurement, the enamel blocks were restored and subjected to thermal and pH cycling, simulating cariogenic challenge. Microhardness measurements were performed on the enamel blocks to calculate the loss of enamel surface hardness. Data were analyzed by analysis of variance and Tukey test (α VIDRION R > MAXXION R. Conclusion: The enamel adjacent to the conventional glass ionomer cements showed less demineralization than the enamel adjacent to resin-modified materials. Key words: Caries inhibition; fluoride; glass-ionomer cementsObjetivo: Este estudo in vitro utilizou ensaio de microdureza para avaliar a desmineralização do esmalte pela indução de lesões artificiais de cárie adjacentes a materiais restauradores. Metodologia: Foram utilizados dois cimentos de ionômero de vidro convencionais (MAXXION R® e VIDRION R®), um cimento de ionômero de vidro modificado por resina (VITREMER®) e uma resina composta sem flúor (Z-250®). Cavidades padronizadas foram confeccionadas em 160 blocos de esmalte bovino, divididos aleatoriamente em 4 grupos experimentais (n=40) de acordo com o material utilizado. Após ser realizado o ensaio de microdureza inicial, os blocos de esmalte foram restaurados e submetidos à ciclagem térmica e de pH, simulando o desafio cariogênico. Os blocos foram então submetidos a novos ensaios de microdureza. A partir dos dados obtidos, foi calculada a perda de dureza superficial (PDS) do esmalte, a qual foi comparada através da análise de variância e teste de Tukey (α=0,05). Resultados: A ordem decrescente de perda de dureza superficial do esmalte adjacente foi: Z-250 = VITREMER > VIDRION R > MAXXION R. Conclusão: A desmineralização foi menor no esmalte adjacente aos cimentos de ionômero de vidro convencionais do que no esmalte adjacente aos materiais resinosos. Palavras-chave: Inibição de cárie; flúor; cimentos de ionômero de vidroEDIPUCRS - Editora Universitária da PUCRS2008-08-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articlelaboratoryapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2807Revista Odonto Ciência; Vol. 24 No. 1 (2009); 49 - 53Revista Odonto Ciência; v. 24 n. 1 (2009); 49 - 531980-65230102-9460reponame:Revista odonto ciência (Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSenghttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2807/3669Ribeiro, Talitha RodriguesDuarte, Rosângela MarquesSilva, Fábia Danielle Sales Cunha Medeiros eForte, Franklin Delano SoaresSampaio, Fábio CorreiaBarbosa, Juliana Karla Guedesinfo:eu-repo/semantics/openAccess2013-11-11T13:23:39Zoai:ojs.revistaseletronicas.pucrs.br:article/2807Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-11T13:23:39Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
Avaliação in vitro da microdureza do esmalte adjacente a restaurações após desafio cariogênico
title In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
spellingShingle In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
Ribeiro, Talitha Rodrigues
Caries inhibition
fluoride
glass-ionomer cements
Dental caries prevention
title_short In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
title_full In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
title_fullStr In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
title_full_unstemmed In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
title_sort In vitro evaluation of enamel microhardness adjacent to restorations after cariogenic challenge
author Ribeiro, Talitha Rodrigues
author_facet Ribeiro, Talitha Rodrigues
Duarte, Rosângela Marques
Silva, Fábia Danielle Sales Cunha Medeiros e
Forte, Franklin Delano Soares
Sampaio, Fábio Correia
Barbosa, Juliana Karla Guedes
author_role author
author2 Duarte, Rosângela Marques
Silva, Fábia Danielle Sales Cunha Medeiros e
Forte, Franklin Delano Soares
Sampaio, Fábio Correia
Barbosa, Juliana Karla Guedes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ribeiro, Talitha Rodrigues
Duarte, Rosângela Marques
Silva, Fábia Danielle Sales Cunha Medeiros e
Forte, Franklin Delano Soares
Sampaio, Fábio Correia
Barbosa, Juliana Karla Guedes
dc.subject.por.fl_str_mv Caries inhibition
fluoride
glass-ionomer cements
Dental caries prevention
topic Caries inhibition
fluoride
glass-ionomer cements
Dental caries prevention
description Purpose: This in vitro study used microhardness testing to assess the enamel demineralization induced by artificial caries lesions adjacent to restorative materials. Methods: Two conventional (MAXXION R® and VIDRION R®) and one resin-modified (VITREMER®) glass ionomer cements and one non-fluoridated composite resin (Z-250®) were tested. Standard cavities were prepared in 160 bovine enamel blocks. The enamel blocks were randomly divided into 4 experimental groups (n=40) according to the material used. After the initial microhardness measurement, the enamel blocks were restored and subjected to thermal and pH cycling, simulating cariogenic challenge. Microhardness measurements were performed on the enamel blocks to calculate the loss of enamel surface hardness. Data were analyzed by analysis of variance and Tukey test (α VIDRION R > MAXXION R. Conclusion: The enamel adjacent to the conventional glass ionomer cements showed less demineralization than the enamel adjacent to resin-modified materials. Key words: Caries inhibition; fluoride; glass-ionomer cements
publishDate 2008
dc.date.none.fl_str_mv 2008-08-19
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
laboratory
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2807
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2807
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/2807/3669
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
publisher.none.fl_str_mv EDIPUCRS - Editora Universitária da PUCRS
dc.source.none.fl_str_mv Revista Odonto Ciência; Vol. 24 No. 1 (2009); 49 - 53
Revista Odonto Ciência; v. 24 n. 1 (2009); 49 - 53
1980-6523
0102-9460
reponame:Revista odonto ciência (Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Revista odonto ciência (Online)
collection Revista odonto ciência (Online)
repository.name.fl_str_mv Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv ||odontociencia@pucrs.br
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