Flexural strength of acrylic resins polymerized by different cycles
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
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/3505 |
Resumo: | Despite the large number of studies addressing the effect of microwave polymerization on the properties of acrylic resin, this method has received limited clinical acceptance. This study evaluated the influence of microwave polymerization on the flexural strength of a denture base resin. A conventional heat-polymerized (Clássico), a microwave-polymerized (Onda-Cryl) and a autopolymerizing acrylic (Jet) resins were used. Five groups were established, according to polymerization cycles: A, B and C (Onda-Cryl, short cycle - 500W/3 min, long - 90W/13 min + 500W/90 sec, and manufacturing microwave cycle - 320W/3 min + 0W/3 min + 720W/3 min); T (Clássico, water bath cycle - 74ºC/9h) and Q (Jet, press chamber cycle - 50ºC/15 min at 2 bar). Ten specimens (65 x 10 x 3.3mm) were prepared for each cycle. The flexural strength of the five groups was measured using a three-point bending test at a cross-head speed of 5 mm/min. Flexural strength values were analyzed by one-way ANOVA and the Tukey's test was performed to identify the groups that were significantly different at 5% level. The microwave-polymerized groups showed the highest means (p |
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Journal of applied oral science (Online) |
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Flexural strength of acrylic resins polymerized by different cycles DenturesAcrylic resinsMicrowavesPhysical propertiesStrength Despite the large number of studies addressing the effect of microwave polymerization on the properties of acrylic resin, this method has received limited clinical acceptance. This study evaluated the influence of microwave polymerization on the flexural strength of a denture base resin. A conventional heat-polymerized (Clássico), a microwave-polymerized (Onda-Cryl) and a autopolymerizing acrylic (Jet) resins were used. Five groups were established, according to polymerization cycles: A, B and C (Onda-Cryl, short cycle - 500W/3 min, long - 90W/13 min + 500W/90 sec, and manufacturing microwave cycle - 320W/3 min + 0W/3 min + 720W/3 min); T (Clássico, water bath cycle - 74ºC/9h) and Q (Jet, press chamber cycle - 50ºC/15 min at 2 bar). Ten specimens (65 x 10 x 3.3mm) were prepared for each cycle. The flexural strength of the five groups was measured using a three-point bending test at a cross-head speed of 5 mm/min. Flexural strength values were analyzed by one-way ANOVA and the Tukey's test was performed to identify the groups that were significantly different at 5% level. The microwave-polymerized groups showed the highest means (pUniversidade de São Paulo. Faculdade de Odontologia de Bauru2007-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/350510.1590/S1678-77572007000500010Journal of Applied Oral Science; Vol. 15 No. 5 (2007); 424-428 Journal of Applied Oral Science; Vol. 15 Núm. 5 (2007); 424-428 Journal of Applied Oral Science; v. 15 n. 5 (2007); 424-428 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/3505/4195Copyright (c) 2007 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessBarbosa, Débora BarrosSouza, Raphael Freitas dePero, Ana CarolinaMarra, JuliêCompagnoni, Marco Antonio2012-04-27T11:58:55Zoai:revistas.usp.br:article/3505Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2012-04-27T11:58:55Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Flexural strength of acrylic resins polymerized by different cycles |
title |
Flexural strength of acrylic resins polymerized by different cycles |
spellingShingle |
Flexural strength of acrylic resins polymerized by different cycles Barbosa, Débora Barros Dentures Acrylic resins Microwaves Physical properties Strength |
title_short |
Flexural strength of acrylic resins polymerized by different cycles |
title_full |
Flexural strength of acrylic resins polymerized by different cycles |
title_fullStr |
Flexural strength of acrylic resins polymerized by different cycles |
title_full_unstemmed |
Flexural strength of acrylic resins polymerized by different cycles |
title_sort |
Flexural strength of acrylic resins polymerized by different cycles |
author |
Barbosa, Débora Barros |
author_facet |
Barbosa, Débora Barros Souza, Raphael Freitas de Pero, Ana Carolina Marra, Juliê Compagnoni, Marco Antonio |
author_role |
author |
author2 |
Souza, Raphael Freitas de Pero, Ana Carolina Marra, Juliê Compagnoni, Marco Antonio |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Barbosa, Débora Barros Souza, Raphael Freitas de Pero, Ana Carolina Marra, Juliê Compagnoni, Marco Antonio |
dc.subject.por.fl_str_mv |
Dentures Acrylic resins Microwaves Physical properties Strength |
topic |
Dentures Acrylic resins Microwaves Physical properties Strength |
description |
Despite the large number of studies addressing the effect of microwave polymerization on the properties of acrylic resin, this method has received limited clinical acceptance. This study evaluated the influence of microwave polymerization on the flexural strength of a denture base resin. A conventional heat-polymerized (Clássico), a microwave-polymerized (Onda-Cryl) and a autopolymerizing acrylic (Jet) resins were used. Five groups were established, according to polymerization cycles: A, B and C (Onda-Cryl, short cycle - 500W/3 min, long - 90W/13 min + 500W/90 sec, and manufacturing microwave cycle - 320W/3 min + 0W/3 min + 720W/3 min); T (Clássico, water bath cycle - 74ºC/9h) and Q (Jet, press chamber cycle - 50ºC/15 min at 2 bar). Ten specimens (65 x 10 x 3.3mm) were prepared for each cycle. The flexural strength of the five groups was measured using a three-point bending test at a cross-head speed of 5 mm/min. Flexural strength values were analyzed by one-way ANOVA and the Tukey's test was performed to identify the groups that were significantly different at 5% level. The microwave-polymerized groups showed the highest means (p |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-10-01 |
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/3505 10.1590/S1678-77572007000500010 |
url |
https://www.revistas.usp.br/jaos/article/view/3505 |
identifier_str_mv |
10.1590/S1678-77572007000500010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/3505/4195 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2007 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2007 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. 15 No. 5 (2007); 424-428 Journal of Applied Oral Science; Vol. 15 Núm. 5 (2007); 424-428 Journal of Applied Oral Science; v. 15 n. 5 (2007); 424-428 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 |
_version_ |
1787713190272958464 |