Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite

Detalhes bibliográficos
Autor(a) principal: Dall'Magro,Eduardo
Data de Publicação: 2007
Outros Autores: Sinhoreti,Mário Alexandre Coelho, Correr,Américo Bortolazzo, Correr-Sobrinho,Lourenço, Consani,Simonides, Puppin-Rontani,Regina Maria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Dental Journal
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402007000200004
Resumo: This study evaluated the bond strength (push-out method) and Knoop hardness of Z250 composite resin, photoactivated with XL 2500 curing unit, using different protocols: continuous mode (700mW/cm² for 20s) (CO); soft-start (50 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS1); soft-start (100 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS2); soft-start (150 mW/cm² for 5 s, followed by 700mW/cm² for 15s) (SS3); soft-start (200mW/cm² for 5s, followed by 700mW/cm² for 15s) (SS4); soft-start (250mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS5); soft-start (300 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS6). For the push-out test, the specimens were tested in a universal testing machine at a crosshead speed of 0.5 mm/min. For the hardness test, the specimens were polished for the hardness measurements, using a 50 g load for 15 s. Data were submitted to ANOVA and Tukey's test (alpha=5%). The results of bond strength showed that the SS3 group obtained the highest bond strength when compared to the CO group. There were no significant differences among the other modes in relation to the other groups. Regarding the other results in hardness, there were no significant differences among the groups in the surface region and up to 4 mm depth.
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spelling Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental compositedental compositebond strengthKnoop hardnesssoft-startThis study evaluated the bond strength (push-out method) and Knoop hardness of Z250 composite resin, photoactivated with XL 2500 curing unit, using different protocols: continuous mode (700mW/cm² for 20s) (CO); soft-start (50 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS1); soft-start (100 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS2); soft-start (150 mW/cm² for 5 s, followed by 700mW/cm² for 15s) (SS3); soft-start (200mW/cm² for 5s, followed by 700mW/cm² for 15s) (SS4); soft-start (250mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS5); soft-start (300 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS6). For the push-out test, the specimens were tested in a universal testing machine at a crosshead speed of 0.5 mm/min. For the hardness test, the specimens were polished for the hardness measurements, using a 50 g load for 15 s. Data were submitted to ANOVA and Tukey's test (alpha=5%). The results of bond strength showed that the SS3 group obtained the highest bond strength when compared to the CO group. There were no significant differences among the other modes in relation to the other groups. Regarding the other results in hardness, there were no significant differences among the groups in the surface region and up to 4 mm depth.Fundação Odontológica de Ribeirão Preto2007-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402007000200004Brazilian Dental Journal v.18 n.2 2007reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/S0103-64402007000200004info:eu-repo/semantics/openAccessDall'Magro,EduardoSinhoreti,Mário Alexandre CoelhoCorrer,Américo BortolazzoCorrer-Sobrinho,LourençoConsani,SimonidesPuppin-Rontani,Regina Mariaeng2007-10-25T00:00:00Zoai:scielo:S0103-64402007000200004Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2007-10-25T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false
dc.title.none.fl_str_mv Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
title Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
spellingShingle Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
Dall'Magro,Eduardo
dental composite
bond strength
Knoop hardness
soft-start
title_short Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
title_full Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
title_fullStr Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
title_full_unstemmed Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
title_sort Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
author Dall'Magro,Eduardo
author_facet Dall'Magro,Eduardo
Sinhoreti,Mário Alexandre Coelho
Correr,Américo Bortolazzo
Correr-Sobrinho,Lourenço
Consani,Simonides
Puppin-Rontani,Regina Maria
author_role author
author2 Sinhoreti,Mário Alexandre Coelho
Correr,Américo Bortolazzo
Correr-Sobrinho,Lourenço
Consani,Simonides
Puppin-Rontani,Regina Maria
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Dall'Magro,Eduardo
Sinhoreti,Mário Alexandre Coelho
Correr,Américo Bortolazzo
Correr-Sobrinho,Lourenço
Consani,Simonides
Puppin-Rontani,Regina Maria
dc.subject.por.fl_str_mv dental composite
bond strength
Knoop hardness
soft-start
topic dental composite
bond strength
Knoop hardness
soft-start
description This study evaluated the bond strength (push-out method) and Knoop hardness of Z250 composite resin, photoactivated with XL 2500 curing unit, using different protocols: continuous mode (700mW/cm² for 20s) (CO); soft-start (50 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS1); soft-start (100 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS2); soft-start (150 mW/cm² for 5 s, followed by 700mW/cm² for 15s) (SS3); soft-start (200mW/cm² for 5s, followed by 700mW/cm² for 15s) (SS4); soft-start (250mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS5); soft-start (300 mW/cm² for 5 s, followed by 700 mW/cm² for 15 s) (SS6). For the push-out test, the specimens were tested in a universal testing machine at a crosshead speed of 0.5 mm/min. For the hardness test, the specimens were polished for the hardness measurements, using a 50 g load for 15 s. Data were submitted to ANOVA and Tukey's test (alpha=5%). The results of bond strength showed that the SS3 group obtained the highest bond strength when compared to the CO group. There were no significant differences among the other modes in relation to the other groups. Regarding the other results in hardness, there were no significant differences among the groups in the surface region and up to 4 mm depth.
publishDate 2007
dc.date.none.fl_str_mv 2007-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402007000200004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402007000200004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-64402007000200004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
publisher.none.fl_str_mv Fundação Odontológica de Ribeirão Preto
dc.source.none.fl_str_mv Brazilian Dental Journal v.18 n.2 2007
reponame:Brazilian Dental Journal
instname:Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron:FUNORP
instname_str Fundação Odontológica de Ribeirão Preto (FUNORP)
instacron_str FUNORP
institution FUNORP
reponame_str Brazilian Dental Journal
collection Brazilian Dental Journal
repository.name.fl_str_mv Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)
repository.mail.fl_str_mv bdj@forp.usp.br||sergio@fosjc.unesp.br
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