The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin
Autor(a) principal: | |
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Data de Publicação: | 2007 |
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/1271 |
Resumo: | Microhardness of composites has been related with degree of conversion, as differences in the organic matrix composition determine changes in polymerization dynamics. Post-cure heating is a process which the composite is submitted in order to enhance its properties, resulting in better restorations. This study evaluated the influence of the post-cure heating on the direct composite microhardness. Samples were made with Charisma and light cured with halogen lamp during 20 seconds. After, samples were submitted to one of the following post-cure methods: autoclave, microwave oven and conventional oven. It was created two controls: a negative control, that consisted of the use of the resin Charisma only light cured; and positive control group, formed by the indirect composite Targis. The Knoop microhardness was obtained after one week of storage and the results submitted to statistical analysis. The three proposed methods determined an increase on the microhardness of the direct composite when compared to the negative control (p < 0,05), not differing of the indirect restoring composite (p > 0,05). This study presents scientific evidence that post-cure heating enhances microhardness of restorative composite resins, suggesting that all others properties may be also enhanced. UNITERMS: composite; polymerization; heat; microhardness. |
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The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resinPolimerização complementar em autoclave, microondas e estufa de um compósito restaurador diretoMicrohardness of composites has been related with degree of conversion, as differences in the organic matrix composition determine changes in polymerization dynamics. Post-cure heating is a process which the composite is submitted in order to enhance its properties, resulting in better restorations. This study evaluated the influence of the post-cure heating on the direct composite microhardness. Samples were made with Charisma and light cured with halogen lamp during 20 seconds. After, samples were submitted to one of the following post-cure methods: autoclave, microwave oven and conventional oven. It was created two controls: a negative control, that consisted of the use of the resin Charisma only light cured; and positive control group, formed by the indirect composite Targis. The Knoop microhardness was obtained after one week of storage and the results submitted to statistical analysis. The three proposed methods determined an increase on the microhardness of the direct composite when compared to the negative control (p < 0,05), not differing of the indirect restoring composite (p > 0,05). This study presents scientific evidence that post-cure heating enhances microhardness of restorative composite resins, suggesting that all others properties may be also enhanced. UNITERMS: composite; polymerization; heat; microhardness.Com o objetivo de tornar o processo de confecção de restaurações indiretas mais acessível, reduzindo seus custos com a resina utilizada e os métodos de polimerização complementar, este estudo testou a possibilidade de se utilizar resinas diretas com métodos de polimerização complementar alternativos. Corpos de prova foram confeccionados com a resina Charisma e fotopolimerizados por 20 segundos. Em seguida as amostras foram submetidas à polimerização complementar em autoclave, microondas e estufa. Foram estabelecidos dois grupos controles: um controle negativo, que consistiu na utilização da resina Charisma fotopolimerizada convencionalmente (20s); e um grupo controle positivo, formado por amostras do compósito restaurador indireto Targis. O ensaio de microdureza Knoop foi realizado após uma semana de armazenagem e os resultados submetidos à análise estatística. Os três métodos de polimerização complementar propostos determinaram um aumento na microdureza do compósito restaurador direto quando comparado ao controle negativo (p < 0,05), não diferindo estatisticamente do compósito restaurador indireto (p > 0,05). Conclui-se que, considerando o desenho experimental deste estudo, a polimerização complementar em autoclave, microondas ou estufa aumenta a microdureza da resina Charisma previamente fotopolimerizada. UNITERMOS: compósito; calor; polimerização; microdureza.EDIPUCRS - Editora Universitária da PUCRS2007-07-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Articleapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1271Revista Odonto Ciência; Vol. 22 No. 56 (2007); 177 - 180Revista Odonto Ciência; v. 22 n. 56 (2007); 177 - 1801980-65230102-9460reponame: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/1271/996Arossi, Guilherme AnzilieroOgliari, FabrícioSamuel, Susana Maria WernerBusato, Adair Luiz Stefanelloinfo:eu-repo/semantics/openAccess2013-11-18T11:15:02Zoai:ojs.revistaseletronicas.pucrs.br:article/1271Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/foPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/fo/oai||odontociencia@pucrs.br1980-65230102-9460opendoar:2013-11-18T11:15:02Revista odonto ciência (Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.none.fl_str_mv |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin Polimerização complementar em autoclave, microondas e estufa de um compósito restaurador direto |
title |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin |
spellingShingle |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin Arossi, Guilherme Anziliero |
title_short |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin |
title_full |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin |
title_fullStr |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin |
title_full_unstemmed |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin |
title_sort |
The effect of post-cure heating in autoclave, microwave oven and conventional oven on direct composite resin |
author |
Arossi, Guilherme Anziliero |
author_facet |
Arossi, Guilherme Anziliero Ogliari, Fabrício Samuel, Susana Maria Werner Busato, Adair Luiz Stefanello |
author_role |
author |
author2 |
Ogliari, Fabrício Samuel, Susana Maria Werner Busato, Adair Luiz Stefanello |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Arossi, Guilherme Anziliero Ogliari, Fabrício Samuel, Susana Maria Werner Busato, Adair Luiz Stefanello |
description |
Microhardness of composites has been related with degree of conversion, as differences in the organic matrix composition determine changes in polymerization dynamics. Post-cure heating is a process which the composite is submitted in order to enhance its properties, resulting in better restorations. This study evaluated the influence of the post-cure heating on the direct composite microhardness. Samples were made with Charisma and light cured with halogen lamp during 20 seconds. After, samples were submitted to one of the following post-cure methods: autoclave, microwave oven and conventional oven. It was created two controls: a negative control, that consisted of the use of the resin Charisma only light cured; and positive control group, formed by the indirect composite Targis. The Knoop microhardness was obtained after one week of storage and the results submitted to statistical analysis. The three proposed methods determined an increase on the microhardness of the direct composite when compared to the negative control (p < 0,05), not differing of the indirect restoring composite (p > 0,05). This study presents scientific evidence that post-cure heating enhances microhardness of restorative composite resins, suggesting that all others properties may be also enhanced. UNITERMS: composite; polymerization; heat; microhardness. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-07-03 |
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/1271 |
url |
https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/1271 |
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/1271/996 |
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. 22 No. 56 (2007); 177 - 180 Revista Odonto Ciência; v. 22 n. 56 (2007); 177 - 180 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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1754820873746907136 |