Class I and Class V composite restorations: Influence of light-curing techniques on microleakage
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
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/4378 |
Resumo: | Purpose: To evaluate the effect of light-curing techniques on in vitro microleakage of class I and class V composite restorations. Methods: Sixty human premolars were used to prepare 30 class I and 30 class V cavities, which were cleaned and treated with one step self-etching adhesive (Xeno III – Dentsply). A resin composite (TPH 3 – Dentsply) was inserted in two layers and light-cured using two protocols (n=15 each): conventional curing (500 mW/cm2, 30 s each increment) and pulse delay technique (first increment similar to the conventional technique and the last increment initially cured with 200 mW/cm2 for 3 s and after 5 min light-cured again with 500 mW/cm2 for 30 s). The specimens were polished, submitted to 800 thermal cycles, sealed, and immersed in a 2% basic fuchsin solution. The teeth were cleaned, sliced, and scored according to the dye penetration. Data were analyzed by Mann-Whitney U test. Results: In class I cavities the pulse delay light-curing technique showed statistically significant better sealing than the conventional technique. In class V restorations no difference was detected between the two techniques in enamel and dentin. Conclusion: Light-curing technique affected the microleakage in class I composite restorations but not in class V. |
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Class I and Class V composite restorations: Influence of light-curing techniques on microleakageRestaurações de Classes I e V: influência das técnicas de fotoativação na microinfiltraçãoPurpose: To evaluate the effect of light-curing techniques on in vitro microleakage of class I and class V composite restorations. Methods: Sixty human premolars were used to prepare 30 class I and 30 class V cavities, which were cleaned and treated with one step self-etching adhesive (Xeno III – Dentsply). A resin composite (TPH 3 – Dentsply) was inserted in two layers and light-cured using two protocols (n=15 each): conventional curing (500 mW/cm2, 30 s each increment) and pulse delay technique (first increment similar to the conventional technique and the last increment initially cured with 200 mW/cm2 for 3 s and after 5 min light-cured again with 500 mW/cm2 for 30 s). The specimens were polished, submitted to 800 thermal cycles, sealed, and immersed in a 2% basic fuchsin solution. The teeth were cleaned, sliced, and scored according to the dye penetration. Data were analyzed by Mann-Whitney U test. Results: In class I cavities the pulse delay light-curing technique showed statistically significant better sealing than the conventional technique. In class V restorations no difference was detected between the two techniques in enamel and dentin. Conclusion: Light-curing technique affected the microleakage in class I composite restorations but not in class V.Objetivo: Avaliar o efeito da técnica de fotoativação na microinfiltração in vitro em cavidades de classes I e V restauradas com resina composta. Metodologia: Em 60 pré-molares humanos, foram confeccionadas cavidades de classe I em 30 dentes e de classe V nos demais 30 dentes. As cavidades foram limpas e tratadas com o sistema adesivo autocondicionante de um passo (Xeno III – Dentsply). A resina composta (TPH 3 – Dentsply) foi inserida em dois incrementos e fotoativada de dois modos (n=15 cada): A) Convencional, sendo cada incremento fotoativado com intensidade de 500 mW/cm2 por 30 s; B) Pulso tardio, sendo o primeiro incremento fotoativado da mesma forma que o grupo convencional e o último incremento inicialmente fotoativado com 200 mW/cm2, durante 3 s, 5 min de espera e fotoativação final com 500 mW/cm2 por 30 s. Os espécimes foram polidos, submetidos a 800 ciclos térmicos, impermeabilizados e imersos em fucsina básica a 2%. Os dentes foram limpos, seccionados e avaliados quanto à penetração do corante usando-se escores de 0 a 5. Os dados foram analisados por teste U de Mann-Whitney. Resultados: Nas cavidades de classe I houve diferença estatisticamente significativa entre os grupos. Nas cavidades de classe V não houve diferença entre os dois métodos de fotoativação, tanto em margem de esmalte quanto em dentina. Conclusão: Em cavidades de classe I a fotoativação por pulso tardio proporcionou maior vedamento marginal que a fotoativação convencional. Em cavidades de classe V não houve diferença de penetração do corante.EDIPUCRS - Editora Universitária da PUCRS2009-03-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4378Revista Odonto Ciência; Vol. 24 No. 3 (2009); 299 - 304Revista Odonto Ciência; v. 24 n. 3 (2009); 299 - 3041980-65230102-9460reponame: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/4378/4516Mattei, Fabiana PaladiniPrates, Luiz Henrique MaykotChain, Marcelo Carvalhoinfo:eu-repo/semantics/openAccess2013-11-11T13:06:25Zoai:ojs.revistaseletronicas.pucrs.br:article/4378Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-11T13:06:25Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.none.fl_str_mv |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage Restaurações de Classes I e V: influência das técnicas de fotoativação na microinfiltração |
title |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage |
spellingShingle |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage Mattei, Fabiana Paladini |
title_short |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage |
title_full |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage |
title_fullStr |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage |
title_full_unstemmed |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage |
title_sort |
Class I and Class V composite restorations: Influence of light-curing techniques on microleakage |
author |
Mattei, Fabiana Paladini |
author_facet |
Mattei, Fabiana Paladini Prates, Luiz Henrique Maykot Chain, Marcelo Carvalho |
author_role |
author |
author2 |
Prates, Luiz Henrique Maykot Chain, Marcelo Carvalho |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Mattei, Fabiana Paladini Prates, Luiz Henrique Maykot Chain, Marcelo Carvalho |
description |
Purpose: To evaluate the effect of light-curing techniques on in vitro microleakage of class I and class V composite restorations. Methods: Sixty human premolars were used to prepare 30 class I and 30 class V cavities, which were cleaned and treated with one step self-etching adhesive (Xeno III – Dentsply). A resin composite (TPH 3 – Dentsply) was inserted in two layers and light-cured using two protocols (n=15 each): conventional curing (500 mW/cm2, 30 s each increment) and pulse delay technique (first increment similar to the conventional technique and the last increment initially cured with 200 mW/cm2 for 3 s and after 5 min light-cured again with 500 mW/cm2 for 30 s). The specimens were polished, submitted to 800 thermal cycles, sealed, and immersed in a 2% basic fuchsin solution. The teeth were cleaned, sliced, and scored according to the dye penetration. Data were analyzed by Mann-Whitney U test. Results: In class I cavities the pulse delay light-curing technique showed statistically significant better sealing than the conventional technique. In class V restorations no difference was detected between the two techniques in enamel and dentin. Conclusion: Light-curing technique affected the microleakage in class I composite restorations but not in class V. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-03-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4378 |
url |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/4378 |
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/4378/4516 |
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. 3 (2009); 299 - 304 Revista Odonto Ciência; v. 24 n. 3 (2009); 299 - 304 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_ |
1754820874782900224 |