The effect of polishing techniques on the surface roughness of a feldspathic porcelain

Detalhes bibliográficos
Autor(a) principal: Oliveira, Mario Cezar
Data de Publicação: 2008
Outros Autores: Vieira, Alex Correia, Miranda, Carolina Baptista, Noya, Márcia Sepúlveda
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/3573
Resumo: Purpose: This in vitro study compared the effect of four different polishing methods on the surface roughness of a feldspathic dental porcelain. Methods: Forty disc-shaped specimens were fabricated with a feldspathic porcelain (Super Porcelain EX3), glazed, and randomly divided into 4 experimental groups and 1 control group (n=8/group). For the experimental groups, the glazed layer was ground with a diamond rotary instrument, and the surface was polished with: rubber points (Edenta), steel finishing burs (Meisinger), silicon rubber point (Shofu) + diamond felt wheel (FGM) + diamond paste (Diamond Excel, FGM), or aluminum oxide discs (Sof-Lex, 3M-ESPE) + diamond felt wheel + diamond paste. Surface roughness (Ra) was measured profilometrically. Data were analyzed by analysis of variance and Tukey test (α=5%). Results: The Ra values were not statistically different among the four polishing groups (P>0.05). All polishing groups had significantly higher mean Ra values than the control glazed specimens (P<0.001). Conclusion: Within the limitations of this study, the results indicate that the tested polishing techniques were not able to provide a porcelain surface as smooth as the glazed surface. Key words: Ceramic; roughness; polishing techniques
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spelling The effect of polishing techniques on the surface roughness of a feldspathic porcelainEfeito de técnicas de polimento sobre a rugosidade superficial de uma porcelana feldspáticaCeramicroughnesspolishing techniquesCeramicspolishingPurpose: This in vitro study compared the effect of four different polishing methods on the surface roughness of a feldspathic dental porcelain. Methods: Forty disc-shaped specimens were fabricated with a feldspathic porcelain (Super Porcelain EX3), glazed, and randomly divided into 4 experimental groups and 1 control group (n=8/group). For the experimental groups, the glazed layer was ground with a diamond rotary instrument, and the surface was polished with: rubber points (Edenta), steel finishing burs (Meisinger), silicon rubber point (Shofu) + diamond felt wheel (FGM) + diamond paste (Diamond Excel, FGM), or aluminum oxide discs (Sof-Lex, 3M-ESPE) + diamond felt wheel + diamond paste. Surface roughness (Ra) was measured profilometrically. Data were analyzed by analysis of variance and Tukey test (α=5%). Results: The Ra values were not statistically different among the four polishing groups (P>0.05). All polishing groups had significantly higher mean Ra values than the control glazed specimens (P<0.001). Conclusion: Within the limitations of this study, the results indicate that the tested polishing techniques were not able to provide a porcelain surface as smooth as the glazed surface. Key words: Ceramic; roughness; polishing techniquesObjetivo: Este estudo in vitro comparou o efeito de quatro métodos de polimento sobre a rugosidade superficial de uma porcelana feldspática. Metodologia: Quarenta discos de porcelana (Super Porcelain EX3) foram confeccionados, glazeados e divididos aleatoriamente em 4 grupos experimentais e 1 grupo controle (n=8/grupo). Nos grupos experimentais, a camada de glaze foi removida com ponta diamantada e as superfícies desgastadas foram polidas com: pontas de borracha (Edenta), brocas multilaminadas (Meisinger), pontas siliconadas (Shofu) + disco de feltro Diamond (FGM) + pasta diamantada (Diamond Excel, FGM), ou discos de óxido de alumínio (Sof-Lex, 3M-ESPE) + disco de feltro Diamond + pasta diamantada. A rugosidade superficial (Ra) foi medida com um rugosímetro. Os dados analisados por análise de variância e teste de Tukey (α=5%). Resultados: Os valores Ra não foram estatisticamente diferentes entre os quatro grupos com polimento (P>0,05). Todos os grupos experimentais com polimento apresentaram valores de Ra significativamente maiores que os espécimes glazeados do grupo controle (P<0,001). Conclusão: Dentro das limitações do estudo, os resultados indicaram que as técnicas de polimento utilizadas não foram capazes de produzir uma superfície tão lisa quanto a superfície glazeada. Palavras-chave: Cerâmica; rugosidade; técnicas de polimentoEDIPUCRS - 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/3573Revista Odonto Ciência; Vol. 23 No. 4 (2008); 330 - 332Revista Odonto Ciência; v. 23 n. 4 (2008); 330 - 3321980-65230102-9460reponame: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/3573/3429Oliveira, Mario CezarVieira, Alex CorreiaMiranda, Carolina BaptistaNoya, Márcia Sepúlvedainfo:eu-repo/semantics/openAccess2013-11-18T10:32:04Zoai:ojs.revistaseletronicas.pucrs.br:article/3573Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-18T10:32:04Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv The effect of polishing techniques on the surface roughness of a feldspathic porcelain
Efeito de técnicas de polimento sobre a rugosidade superficial de uma porcelana feldspática
title The effect of polishing techniques on the surface roughness of a feldspathic porcelain
spellingShingle The effect of polishing techniques on the surface roughness of a feldspathic porcelain
Oliveira, Mario Cezar
Ceramic
roughness
polishing techniques
Ceramics
polishing
title_short The effect of polishing techniques on the surface roughness of a feldspathic porcelain
title_full The effect of polishing techniques on the surface roughness of a feldspathic porcelain
title_fullStr The effect of polishing techniques on the surface roughness of a feldspathic porcelain
title_full_unstemmed The effect of polishing techniques on the surface roughness of a feldspathic porcelain
title_sort The effect of polishing techniques on the surface roughness of a feldspathic porcelain
author Oliveira, Mario Cezar
author_facet Oliveira, Mario Cezar
Vieira, Alex Correia
Miranda, Carolina Baptista
Noya, Márcia Sepúlveda
author_role author
author2 Vieira, Alex Correia
Miranda, Carolina Baptista
Noya, Márcia Sepúlveda
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira, Mario Cezar
Vieira, Alex Correia
Miranda, Carolina Baptista
Noya, Márcia Sepúlveda
dc.subject.por.fl_str_mv Ceramic
roughness
polishing techniques
Ceramics
polishing
topic Ceramic
roughness
polishing techniques
Ceramics
polishing
description Purpose: This in vitro study compared the effect of four different polishing methods on the surface roughness of a feldspathic dental porcelain. Methods: Forty disc-shaped specimens were fabricated with a feldspathic porcelain (Super Porcelain EX3), glazed, and randomly divided into 4 experimental groups and 1 control group (n=8/group). For the experimental groups, the glazed layer was ground with a diamond rotary instrument, and the surface was polished with: rubber points (Edenta), steel finishing burs (Meisinger), silicon rubber point (Shofu) + diamond felt wheel (FGM) + diamond paste (Diamond Excel, FGM), or aluminum oxide discs (Sof-Lex, 3M-ESPE) + diamond felt wheel + diamond paste. Surface roughness (Ra) was measured profilometrically. Data were analyzed by analysis of variance and Tukey test (α=5%). Results: The Ra values were not statistically different among the four polishing groups (P>0.05). All polishing groups had significantly higher mean Ra values than the control glazed specimens (P<0.001). Conclusion: Within the limitations of this study, the results indicate that the tested polishing techniques were not able to provide a porcelain surface as smooth as the glazed surface. Key words: Ceramic; roughness; polishing techniques
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/3573
url https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/3573
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/3573/3429
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. 23 No. 4 (2008); 330 - 332
Revista Odonto Ciência; v. 23 n. 4 (2008); 330 - 332
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
_version_ 1754820874296360960

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