Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
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=S0103-64402021000300092 |
Resumo: | Abstract This in vitro study evaluated the effect of the beam homogeneity of a multiple-peak light-curing unit on the surface microhardness and the effect of toothbrushing wear on the microhardness, surface roughness, roughness profile, volume loss, and gloss retention of incremental and bulk-fill resin-based composites (RBCs). A LED light-curing unit (VALO) with four LEDs at the tip end (405, 445, 465A, and 465B nm emission peak) was used according to each manufacturer-recommended time to obtain disks (n=10) of six RBCs: Estelite Sigma Quick, Charisma Classic, Tetric EvoCeram Bulk Fill, Filtek Z250, Filtek Supreme Ultra, and Filtek Bulk Fill. Microhardness values were obtained according to each LED positioning of the light-curing unit on the top surface of the RBCs and were analyzed before and after toothbrushing regarding microhardness, surface roughness, roughness profile, volume loss, and gloss retention. Microhardness was considered homogeneous on the top surface regardless of the type of RBC or wavelength tested (p>0.05). Overall, toothbrushing did not reduce the microhardness of the RBCs but influenced the gloss values for most RBCs (p<0.001). Charisma Classic presented the greatest surface roughness and roughness profile after toothbrushing (p<0.05). Volume loss did not differ among RBCs (p>0.05). In conclusion, different wavelengths of the LED did not affect the top surface microhardness, regardless of the RBCs tested; and bulk-fill composites presented similar surface changes (microhardness, surface roughness, roughness profile, volume loss, and gloss retention) when compared to conventional composites after toothbrushing. |
id |
FUNORP-1_3ada49f3abffb62d078152322e7cea51 |
---|---|
oai_identifier_str |
oai:scielo:S0103-64402021000300092 |
network_acronym_str |
FUNORP-1 |
network_name_str |
Brazilian Dental Journal |
repository_id_str |
|
spelling |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wearResin compositebulk-fill compositetoothbrushingdental light-curingmicrohardnessAbstract This in vitro study evaluated the effect of the beam homogeneity of a multiple-peak light-curing unit on the surface microhardness and the effect of toothbrushing wear on the microhardness, surface roughness, roughness profile, volume loss, and gloss retention of incremental and bulk-fill resin-based composites (RBCs). A LED light-curing unit (VALO) with four LEDs at the tip end (405, 445, 465A, and 465B nm emission peak) was used according to each manufacturer-recommended time to obtain disks (n=10) of six RBCs: Estelite Sigma Quick, Charisma Classic, Tetric EvoCeram Bulk Fill, Filtek Z250, Filtek Supreme Ultra, and Filtek Bulk Fill. Microhardness values were obtained according to each LED positioning of the light-curing unit on the top surface of the RBCs and were analyzed before and after toothbrushing regarding microhardness, surface roughness, roughness profile, volume loss, and gloss retention. Microhardness was considered homogeneous on the top surface regardless of the type of RBC or wavelength tested (p>0.05). Overall, toothbrushing did not reduce the microhardness of the RBCs but influenced the gloss values for most RBCs (p<0.001). Charisma Classic presented the greatest surface roughness and roughness profile after toothbrushing (p<0.05). Volume loss did not differ among RBCs (p>0.05). In conclusion, different wavelengths of the LED did not affect the top surface microhardness, regardless of the RBCs tested; and bulk-fill composites presented similar surface changes (microhardness, surface roughness, roughness profile, volume loss, and gloss retention) when compared to conventional composites after toothbrushing.Fundação Odontológica de Ribeirão Preto2021-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402021000300092Brazilian Dental Journal v.32 n.3 2021reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440202104044info:eu-repo/semantics/openAccessSahadi,Beatriz OmettoNima,GabrielAndre,Carolina BossoSebold,MaiconPalma-Dibb,Regina GuenkaFaraoni,Juliana JendirobaGiannini,Marceloeng2021-11-05T00:00:00Zoai:scielo:S0103-64402021000300092Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2021-11-05T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
title |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
spellingShingle |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear Sahadi,Beatriz Ometto Resin composite bulk-fill composite toothbrushing dental light-curing microhardness |
title_short |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
title_full |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
title_fullStr |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
title_full_unstemmed |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
title_sort |
Microhardness homogeneity of RBCs light-cured with a multiple-peak LED and surface characterization after wear |
author |
Sahadi,Beatriz Ometto |
author_facet |
Sahadi,Beatriz Ometto Nima,Gabriel Andre,Carolina Bosso Sebold,Maicon Palma-Dibb,Regina Guenka Faraoni,Juliana Jendiroba Giannini,Marcelo |
author_role |
author |
author2 |
Nima,Gabriel Andre,Carolina Bosso Sebold,Maicon Palma-Dibb,Regina Guenka Faraoni,Juliana Jendiroba Giannini,Marcelo |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Sahadi,Beatriz Ometto Nima,Gabriel Andre,Carolina Bosso Sebold,Maicon Palma-Dibb,Regina Guenka Faraoni,Juliana Jendiroba Giannini,Marcelo |
dc.subject.por.fl_str_mv |
Resin composite bulk-fill composite toothbrushing dental light-curing microhardness |
topic |
Resin composite bulk-fill composite toothbrushing dental light-curing microhardness |
description |
Abstract This in vitro study evaluated the effect of the beam homogeneity of a multiple-peak light-curing unit on the surface microhardness and the effect of toothbrushing wear on the microhardness, surface roughness, roughness profile, volume loss, and gloss retention of incremental and bulk-fill resin-based composites (RBCs). A LED light-curing unit (VALO) with four LEDs at the tip end (405, 445, 465A, and 465B nm emission peak) was used according to each manufacturer-recommended time to obtain disks (n=10) of six RBCs: Estelite Sigma Quick, Charisma Classic, Tetric EvoCeram Bulk Fill, Filtek Z250, Filtek Supreme Ultra, and Filtek Bulk Fill. Microhardness values were obtained according to each LED positioning of the light-curing unit on the top surface of the RBCs and were analyzed before and after toothbrushing regarding microhardness, surface roughness, roughness profile, volume loss, and gloss retention. Microhardness was considered homogeneous on the top surface regardless of the type of RBC or wavelength tested (p>0.05). Overall, toothbrushing did not reduce the microhardness of the RBCs but influenced the gloss values for most RBCs (p<0.001). Charisma Classic presented the greatest surface roughness and roughness profile after toothbrushing (p<0.05). Volume loss did not differ among RBCs (p>0.05). In conclusion, different wavelengths of the LED did not affect the top surface microhardness, regardless of the RBCs tested; and bulk-fill composites presented similar surface changes (microhardness, surface roughness, roughness profile, volume loss, and gloss retention) when compared to conventional composites after toothbrushing. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-01 |
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=S0103-64402021000300092 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402021000300092 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440202104044 |
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.32 n.3 2021 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_ |
1754204096256016384 |