The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/1675 |
Resumo: | Objective: This study compared different composites for color stability after exposure to at home and in-office bleaching gels. Material and Methods: Composite resin specimens (6mm diameterx2mm thickness) were manufactured according to the following groups (n=20): RC- Conventional; BF-Bulk Fill; RF-Flow; BFF-Bulk-Fill Flow. The surfaces were stained with coffee solution for 36hrs. A spectrophotometer was used to record the initial color (L*a*b*). Half of the specimens from each group underwent bleaching with 35% hydrogen peroxide (in-office) in three 45-minute applications. New color measurements were performed after 7, 14 and 21 days. The other half of the specimens underwent bleaching with 22% carbamide peroxide (at home) in 14 1-hour applications. Further color measurements were performed after 7 and 14 hours. For comparison between the color coordinates in different periods, ANOVA for repeated measures was applied (?=5%). The color variation (?E) was calculated for each group. Results: For in-office bleaching, there were no significant differences between the periods b* coordinate of the RF group, and for L* and b* coordinates of the BFF group. For at home bleaching the groups BF and BFF showed no differences for the L* coordinate. For the other coordinates, there was difference between the initial periods and after 14 days. The ?E variation presented higher values for the at home bleaching groups. For both whiteners the bulk-fill resins presented the greatest color variations. Conclusions: Bulk Fill resins do not guarantee greater color stability than the other composite resins tested, including conventional flow resin. The conventional composite resin showed the lower ?E. |
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Brazilian Dental Science |
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The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resinsObjective: This study compared different composites for color stability after exposure to at home and in-office bleaching gels. Material and Methods: Composite resin specimens (6mm diameterx2mm thickness) were manufactured according to the following groups (n=20): RC- Conventional; BF-Bulk Fill; RF-Flow; BFF-Bulk-Fill Flow. The surfaces were stained with coffee solution for 36hrs. A spectrophotometer was used to record the initial color (L*a*b*). Half of the specimens from each group underwent bleaching with 35% hydrogen peroxide (in-office) in three 45-minute applications. New color measurements were performed after 7, 14 and 21 days. The other half of the specimens underwent bleaching with 22% carbamide peroxide (at home) in 14 1-hour applications. Further color measurements were performed after 7 and 14 hours. For comparison between the color coordinates in different periods, ANOVA for repeated measures was applied (?=5%). The color variation (?E) was calculated for each group. Results: For in-office bleaching, there were no significant differences between the periods b* coordinate of the RF group, and for L* and b* coordinates of the BFF group. For at home bleaching the groups BF and BFF showed no differences for the L* coordinate. For the other coordinates, there was difference between the initial periods and after 14 days. The ?E variation presented higher values for the at home bleaching groups. For both whiteners the bulk-fill resins presented the greatest color variations. Conclusions: Bulk Fill resins do not guarantee greater color stability than the other composite resins tested, including conventional flow resin. The conventional composite resin showed the lower ?E.Institute of Science and Technology of São José dos Campos2019-01-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfimage/jpegimage/jpegimage/jpegapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://ojs.ict.unesp.br/index.php/cob/article/view/167510.14295/bds.2019.v22i1.1675Brazilian Dental Science; Vol. 22 No. 1 (2019): Jan. - Mar. / 2019 - Published January 2019; 94-102Brazilian Dental Science; v. 22 n. 1 (2019): Jan. - Mar. / 2019 - Published January 2019; 94-1022178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/1675/1313https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3539https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3540https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3541https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3542https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3543Copyright (c) 2019 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccessAraújo, Rodrigo MáximoLemes, Elisangela CostaPachito, Rubens FerriFeitosa, Fernanda Alves2020-01-28T11:58:43Zoai:ojs.pkp.sfu.ca:article/1675Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:30:19.739280Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
title |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
spellingShingle |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins Araújo, Rodrigo Máximo |
title_short |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
title_full |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
title_fullStr |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
title_full_unstemmed |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
title_sort |
The impact of at home and in-office bleaching agents on the color stability of bulk-fill composite resins |
author |
Araújo, Rodrigo Máximo |
author_facet |
Araújo, Rodrigo Máximo Lemes, Elisangela Costa Pachito, Rubens Ferri Feitosa, Fernanda Alves |
author_role |
author |
author2 |
Lemes, Elisangela Costa Pachito, Rubens Ferri Feitosa, Fernanda Alves |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Araújo, Rodrigo Máximo Lemes, Elisangela Costa Pachito, Rubens Ferri Feitosa, Fernanda Alves |
description |
Objective: This study compared different composites for color stability after exposure to at home and in-office bleaching gels. Material and Methods: Composite resin specimens (6mm diameterx2mm thickness) were manufactured according to the following groups (n=20): RC- Conventional; BF-Bulk Fill; RF-Flow; BFF-Bulk-Fill Flow. The surfaces were stained with coffee solution for 36hrs. A spectrophotometer was used to record the initial color (L*a*b*). Half of the specimens from each group underwent bleaching with 35% hydrogen peroxide (in-office) in three 45-minute applications. New color measurements were performed after 7, 14 and 21 days. The other half of the specimens underwent bleaching with 22% carbamide peroxide (at home) in 14 1-hour applications. Further color measurements were performed after 7 and 14 hours. For comparison between the color coordinates in different periods, ANOVA for repeated measures was applied (?=5%). The color variation (?E) was calculated for each group. Results: For in-office bleaching, there were no significant differences between the periods b* coordinate of the RF group, and for L* and b* coordinates of the BFF group. For at home bleaching the groups BF and BFF showed no differences for the L* coordinate. For the other coordinates, there was difference between the initial periods and after 14 days. The ?E variation presented higher values for the at home bleaching groups. For both whiteners the bulk-fill resins presented the greatest color variations. Conclusions: Bulk Fill resins do not guarantee greater color stability than the other composite resins tested, including conventional flow resin. The conventional composite resin showed the lower ?E. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-31 |
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://ojs.ict.unesp.br/index.php/cob/article/view/1675 10.14295/bds.2019.v22i1.1675 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/1675 |
identifier_str_mv |
10.14295/bds.2019.v22i1.1675 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/1675/1313 https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3539 https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3540 https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3541 https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3542 https://ojs.ict.unesp.br/index.php/cob/article/view/1675/3543 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf image/jpeg image/jpeg image/jpeg application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 22 No. 1 (2019): Jan. - Mar. / 2019 - Published January 2019; 94-102 Brazilian Dental Science; v. 22 n. 1 (2019): Jan. - Mar. / 2019 - Published January 2019; 94-102 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346900750008320 |