Effect of different initial light intensity by the soft-start photoactivation on the bond strength and Knoop hardness of a dental composite
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , |
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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Brazilian Dental Journal |
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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 |
_version_ |
1754204090499334144 |