Influence of different mould materials on the degree of conversion of dental composite resins

Detalhes bibliográficos
Autor(a) principal: Cornelio, Roberto Belloti
Data de Publicação: 2015
Outros Autores: Kopperud, Hilde Molvig, Haasum, Johan, Gedde, Ulf Wiel, Örtengren, Ulf
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/8641235
Resumo: Aim: In this study, the degree of conversion (DC) was analyzed on the surfaces of dental composite resins cured in different mould materials with different irradiation times. Methods: Samples of three composite resins (Grandio®, Grandio Flow® [thickness = 2 mm; 4 mm; Ø = 5 mm] irradiated for 10 s, 20 s and 40 s and an experimental composite (EXPM) [thickness = 6 mm; Ø = 5 mm] irradiated for 40 s) were cured in moulds made of polytetrafluorethylene (PTFE), highdensity polyethylene (HDPE) and stainless steel (SS). The DC was analyzed by FT-Raman spectroscopy. Results: The DC was significantly lower for the 2-mm-thick samples of Grandio® cured with 20 s in the SS mould than in the PTFE mould. The same trend was found for the 4-mmthick samples of Grandio Flow® cured with 40 s. The main difference of the DC between Grandio® and Grandio Flow® occurred when 10 s irradiation was used, independently of the mould material and thickness of the samples. The analysis of the DC on the sites around the samples of EXPM showed no significant difference from those at the bottom when cured in each mould material with 40 s irradiation. Conclusions: The DC was not affected by the mould material, instead, the resin formulation and the irradiation times were the main factors affecting the degree of conversion.
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spelling Influence of different mould materials on the degree of conversion of dental composite resinsMould materialDental composite resinDegree of conversionRaman spectroscopyOdontologiaAim: In this study, the degree of conversion (DC) was analyzed on the surfaces of dental composite resins cured in different mould materials with different irradiation times. Methods: Samples of three composite resins (Grandio®, Grandio Flow® [thickness = 2 mm; 4 mm; Ø = 5 mm] irradiated for 10 s, 20 s and 40 s and an experimental composite (EXPM) [thickness = 6 mm; Ø = 5 mm] irradiated for 40 s) were cured in moulds made of polytetrafluorethylene (PTFE), highdensity polyethylene (HDPE) and stainless steel (SS). The DC was analyzed by FT-Raman spectroscopy. Results: The DC was significantly lower for the 2-mm-thick samples of Grandio® cured with 20 s in the SS mould than in the PTFE mould. The same trend was found for the 4-mmthick samples of Grandio Flow® cured with 40 s. The main difference of the DC between Grandio® and Grandio Flow® occurred when 10 s irradiation was used, independently of the mould material and thickness of the samples. The analysis of the DC on the sites around the samples of EXPM showed no significant difference from those at the bottom when cured in each mould material with 40 s irradiation. Conclusions: The DC was not affected by the mould material, instead, the resin formulation and the irradiation times were the main factors affecting the degree of conversion.Universidade Estadual de Campinas2015-10-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641235Brazilian Journal of Oral Sciences; v. 11 n. 4 (2012): Oct./Dec.; 469-474Brazilian Journal of Oral Sciences; Vol. 11 No. 4 (2012): Oct./Dec.; 469-4741677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPporhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641235/8747Copyright (c) 2015 Roberto Belloti Cornelio, Hilde Molvig Kopperud, Johan Haasum, Ulf Wiel Gedde, Ulf Örtengrenhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCornelio, Roberto BellotiKopperud, Hilde MolvigHaasum, JohanGedde, Ulf WielÖrtengren, Ulf2023-09-28T16:25:15Zoai:ojs.periodicos.sbu.unicamp.br:article/8641235Revistahttps://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:2023-09-28T16:25:15Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv Influence of different mould materials on the degree of conversion of dental composite resins
title Influence of different mould materials on the degree of conversion of dental composite resins
spellingShingle Influence of different mould materials on the degree of conversion of dental composite resins
Cornelio, Roberto Belloti
Mould material
Dental composite resin
Degree of conversion
Raman spectroscopy
Odontologia
title_short Influence of different mould materials on the degree of conversion of dental composite resins
title_full Influence of different mould materials on the degree of conversion of dental composite resins
title_fullStr Influence of different mould materials on the degree of conversion of dental composite resins
title_full_unstemmed Influence of different mould materials on the degree of conversion of dental composite resins
title_sort Influence of different mould materials on the degree of conversion of dental composite resins
author Cornelio, Roberto Belloti
author_facet Cornelio, Roberto Belloti
Kopperud, Hilde Molvig
Haasum, Johan
Gedde, Ulf Wiel
Örtengren, Ulf
author_role author
author2 Kopperud, Hilde Molvig
Haasum, Johan
Gedde, Ulf Wiel
Örtengren, Ulf
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Cornelio, Roberto Belloti
Kopperud, Hilde Molvig
Haasum, Johan
Gedde, Ulf Wiel
Örtengren, Ulf
dc.subject.por.fl_str_mv Mould material
Dental composite resin
Degree of conversion
Raman spectroscopy
Odontologia
topic Mould material
Dental composite resin
Degree of conversion
Raman spectroscopy
Odontologia
description Aim: In this study, the degree of conversion (DC) was analyzed on the surfaces of dental composite resins cured in different mould materials with different irradiation times. Methods: Samples of three composite resins (Grandio®, Grandio Flow® [thickness = 2 mm; 4 mm; Ø = 5 mm] irradiated for 10 s, 20 s and 40 s and an experimental composite (EXPM) [thickness = 6 mm; Ø = 5 mm] irradiated for 40 s) were cured in moulds made of polytetrafluorethylene (PTFE), highdensity polyethylene (HDPE) and stainless steel (SS). The DC was analyzed by FT-Raman spectroscopy. Results: The DC was significantly lower for the 2-mm-thick samples of Grandio® cured with 20 s in the SS mould than in the PTFE mould. The same trend was found for the 4-mmthick samples of Grandio Flow® cured with 40 s. The main difference of the DC between Grandio® and Grandio Flow® occurred when 10 s irradiation was used, independently of the mould material and thickness of the samples. The analysis of the DC on the sites around the samples of EXPM showed no significant difference from those at the bottom when cured in each mould material with 40 s irradiation. Conclusions: The DC was not affected by the mould material, instead, the resin formulation and the irradiation times were the main factors affecting the degree of conversion.
publishDate 2015
dc.date.none.fl_str_mv 2015-10-22
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/8641235
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641235
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/8641235/8747
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
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. 4 (2012): Oct./Dec.; 469-474
Brazilian Journal of Oral Sciences; Vol. 11 No. 4 (2012): Oct./Dec.; 469-474
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
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