Influence of two methods of additional activation on composite resins surface hardness
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian journal of oral sciences (Online) |
Texto Completo: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641382 |
Resumo: | Aim: To evaluate the influence of two methods of additional activation on the surface hardness of composite resins. Methods: Two types of composites were tested: Filtek P60 and Filtek P350. For each material, 48 specimens were prepared and divided into four groups: Group 1 (control) - conventional activation, using a halogen light for 40 s; Group 2 - conventional activation and additional activation with a halogen lamp for 60 s; Group 3 - conventional activation and additional activation with an autoclave at 127°C for 6 min at 1.7 kg/cm3 pressure; and Group 4 - conventional activation and additional activation with an autoclave at 134 °C for 15 min at 2.1 kg /cm3 pressure. The use of autoclave has been suggested for being a standard equipment at dental offices, and thus, even at locations far from dental laboratories, it would be possible to have simple techniques that allow access to indirect restorations at lower costs. Data obtained in the study were analyzed statistically by analysis of variance followed by Tukey’s test at a 5% level of significance. Results: For Z350, there was a significant increase in hardness for all groups of additional activation (Groups 2, 3 and 4), compared with the control group. For P60, a significant increase in surface hardness was found compared with the control group for the groups that used additional activation with an autoclave (Groups 3 and 4). Conclusions: Additional activation with an autoclave increased the surface hardness of the tested resins to a greater degree than additional activation with a halogen light. |
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UNICAMP-8 |
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Brazilian journal of oral sciences (Online) |
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Influence of two methods of additional activation on composite resins surface hardnessPolymerizationComposite resinsHardnessOdontologiaAim: To evaluate the influence of two methods of additional activation on the surface hardness of composite resins. Methods: Two types of composites were tested: Filtek P60 and Filtek P350. For each material, 48 specimens were prepared and divided into four groups: Group 1 (control) - conventional activation, using a halogen light for 40 s; Group 2 - conventional activation and additional activation with a halogen lamp for 60 s; Group 3 - conventional activation and additional activation with an autoclave at 127°C for 6 min at 1.7 kg/cm3 pressure; and Group 4 - conventional activation and additional activation with an autoclave at 134 °C for 15 min at 2.1 kg /cm3 pressure. The use of autoclave has been suggested for being a standard equipment at dental offices, and thus, even at locations far from dental laboratories, it would be possible to have simple techniques that allow access to indirect restorations at lower costs. Data obtained in the study were analyzed statistically by analysis of variance followed by Tukey’s test at a 5% level of significance. Results: For Z350, there was a significant increase in hardness for all groups of additional activation (Groups 2, 3 and 4), compared with the control group. For P60, a significant increase in surface hardness was found compared with the control group for the groups that used additional activation with an autoclave (Groups 3 and 4). Conclusions: Additional activation with an autoclave increased the surface hardness of the tested resins to a greater degree than additional activation with a halogen light.Universidade Estadual de Campinas2015-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/864138210.20396/bjos.v11i3.8641382Brazilian Journal of Oral Sciences; v. 11 n. 3 (2012): Jul./Sep.; 396-400Brazilian Journal of Oral Sciences; Vol. 11 No. 3 (2012): Jul./Sep.; 396-4001677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641382/8902Gonçalves, Alessandro RibeiroRodrigues, Caroline de Deus TupinambáSouza, Carlos Henrique de Carvalho eSousa, Leilane Ferraz Moreira deLopes, Pedro Henrique de Souzainfo:eu-repo/semantics/openAccess2016-02-25T09:10:07Zoai:ojs.periodicos.sbu.unicamp.br:article/8641382Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2016-02-25T09:10:07Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
Influence of two methods of additional activation on composite resins surface hardness |
title |
Influence of two methods of additional activation on composite resins surface hardness |
spellingShingle |
Influence of two methods of additional activation on composite resins surface hardness Gonçalves, Alessandro Ribeiro Polymerization Composite resins Hardness Odontologia |
title_short |
Influence of two methods of additional activation on composite resins surface hardness |
title_full |
Influence of two methods of additional activation on composite resins surface hardness |
title_fullStr |
Influence of two methods of additional activation on composite resins surface hardness |
title_full_unstemmed |
Influence of two methods of additional activation on composite resins surface hardness |
title_sort |
Influence of two methods of additional activation on composite resins surface hardness |
author |
Gonçalves, Alessandro Ribeiro |
author_facet |
Gonçalves, Alessandro Ribeiro Rodrigues, Caroline de Deus Tupinambá Souza, Carlos Henrique de Carvalho e Sousa, Leilane Ferraz Moreira de Lopes, Pedro Henrique de Souza |
author_role |
author |
author2 |
Rodrigues, Caroline de Deus Tupinambá Souza, Carlos Henrique de Carvalho e Sousa, Leilane Ferraz Moreira de Lopes, Pedro Henrique de Souza |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Gonçalves, Alessandro Ribeiro Rodrigues, Caroline de Deus Tupinambá Souza, Carlos Henrique de Carvalho e Sousa, Leilane Ferraz Moreira de Lopes, Pedro Henrique de Souza |
dc.subject.por.fl_str_mv |
Polymerization Composite resins Hardness Odontologia |
topic |
Polymerization Composite resins Hardness Odontologia |
description |
Aim: To evaluate the influence of two methods of additional activation on the surface hardness of composite resins. Methods: Two types of composites were tested: Filtek P60 and Filtek P350. For each material, 48 specimens were prepared and divided into four groups: Group 1 (control) - conventional activation, using a halogen light for 40 s; Group 2 - conventional activation and additional activation with a halogen lamp for 60 s; Group 3 - conventional activation and additional activation with an autoclave at 127°C for 6 min at 1.7 kg/cm3 pressure; and Group 4 - conventional activation and additional activation with an autoclave at 134 °C for 15 min at 2.1 kg /cm3 pressure. The use of autoclave has been suggested for being a standard equipment at dental offices, and thus, even at locations far from dental laboratories, it would be possible to have simple techniques that allow access to indirect restorations at lower costs. Data obtained in the study were analyzed statistically by analysis of variance followed by Tukey’s test at a 5% level of significance. Results: For Z350, there was a significant increase in hardness for all groups of additional activation (Groups 2, 3 and 4), compared with the control group. For P60, a significant increase in surface hardness was found compared with the control group for the groups that used additional activation with an autoclave (Groups 3 and 4). Conclusions: Additional activation with an autoclave increased the surface hardness of the tested resins to a greater degree than additional activation with a halogen light. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-27 |
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://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641382 10.20396/bjos.v11i3.8641382 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641382 |
identifier_str_mv |
10.20396/bjos.v11i3.8641382 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641382/8902 |
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 |
Universidade Estadual de Campinas |
publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
dc.source.none.fl_str_mv |
Brazilian Journal of Oral Sciences; v. 11 n. 3 (2012): Jul./Sep.; 396-400 Brazilian Journal of Oral Sciences; Vol. 11 No. 3 (2012): Jul./Sep.; 396-400 1677-3225 reponame:Brazilian journal of oral sciences (Online) instname:Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
instname_str |
Universidade Estadual de Campinas (UNICAMP) |
instacron_str |
UNICAMP |
institution |
UNICAMP |
reponame_str |
Brazilian journal of oral sciences (Online) |
collection |
Brazilian journal of oral sciences (Online) |
repository.name.fl_str_mv |
Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP) |
repository.mail.fl_str_mv |
brjorals@fop.unicamp.br||brjorals@fop.unicamp.br |
_version_ |
1800216398861959168 |