Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate
Autor(a) principal: | |
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Data de Publicação: | 2023 |
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/3923 |
Resumo: | Objective: To evaluate the biaxial flexural strength (BFS) of lithium disilicate (L), cemented on different substrates (epoxy resin - E and metal - M) with dual-cure resin cement (Rc) and zinc phosphate cement (Zc), not aged, thermally aged (TC) or thermo-mechanical aged (TC/MC). Material and Methods: Disks of L, E, and M were fabricated, and the cementation was performed according to the following groups: ERc (L+E+Rc); MRc (L+M+Rc); MZc (L+M+Zc); EZc (L+E+Zc). Ten samples from each described group were tested in BFS, ten more samples were subjected to TC (1×104 cycles between 5 ºC and 55 ºC water), and the last 10 samples were subjected to TC/MC (MC: 1.2×106 cycles, 50 N, 3.8 Hz). The BFS test was performed and scanning electron microscopy (SEM) was performed to evaluate the failure mode. The effect of the cementation strategy (cement/substrate) was compared in each aging method and the effect of the aging method was evaluated for each cementation strategy by one-way ANOVA and Tukey post-hoc test (a=0.05). Results: The strength values were highest to M (237.8 ~ 463.9 MPa), in comparison to the E (41.03 ~ 66.76 MPa), despite aging and luting agent. Flexural strength data decreased after TC and TC/MC in groups cemented with Zc, but was stable when cemented with Rc. SEM analysis indicated that failure origins were located at the tensile surface of the L. Conclusion: Lithium disilicate discs cemented to the metallic substrate presented the highest biaxial flexural strength. The cementation with dual-cure resin cement did not decrease BFS after aging. KEYWORDS Aging; Cementation; Ceramics; Flexural strength; Lithium disilicate. |
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oai:ojs.pkp.sfu.ca:article/3923 |
network_acronym_str |
UNESP-20 |
network_name_str |
Brazilian Dental Science |
repository_id_str |
|
spelling |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicateObjective: To evaluate the biaxial flexural strength (BFS) of lithium disilicate (L), cemented on different substrates (epoxy resin - E and metal - M) with dual-cure resin cement (Rc) and zinc phosphate cement (Zc), not aged, thermally aged (TC) or thermo-mechanical aged (TC/MC). Material and Methods: Disks of L, E, and M were fabricated, and the cementation was performed according to the following groups: ERc (L+E+Rc); MRc (L+M+Rc); MZc (L+M+Zc); EZc (L+E+Zc). Ten samples from each described group were tested in BFS, ten more samples were subjected to TC (1×104 cycles between 5 ºC and 55 ºC water), and the last 10 samples were subjected to TC/MC (MC: 1.2×106 cycles, 50 N, 3.8 Hz). The BFS test was performed and scanning electron microscopy (SEM) was performed to evaluate the failure mode. The effect of the cementation strategy (cement/substrate) was compared in each aging method and the effect of the aging method was evaluated for each cementation strategy by one-way ANOVA and Tukey post-hoc test (a=0.05). Results: The strength values were highest to M (237.8 ~ 463.9 MPa), in comparison to the E (41.03 ~ 66.76 MPa), despite aging and luting agent. Flexural strength data decreased after TC and TC/MC in groups cemented with Zc, but was stable when cemented with Rc. SEM analysis indicated that failure origins were located at the tensile surface of the L. Conclusion: Lithium disilicate discs cemented to the metallic substrate presented the highest biaxial flexural strength. The cementation with dual-cure resin cement did not decrease BFS after aging. KEYWORDS Aging; Cementation; Ceramics; Flexural strength; Lithium disilicate.Institute of Science and Technology of São José dos Campos2023-10-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/3923Brazilian Dental Science; Vol. 26 No. 4 (2023): Oct - Dec / 2023 - Published Oct 2023Brazilian Dental Science; v. 26 n. 4 (2023): Oct - Dec / 2023 - Published Oct 20232178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPenghttps://ojs.ict.unesp.br/index.php/cob/article/view/3923/4671Copyright (c) 2023 Brazilian Dental Scienceinfo:eu-repo/semantics/openAccess de Lima , Leonardo CustódioMiranda, Jean Soaresde Carvalho, Ronaldo Luís AlmeidaBarcellos, Aline Serrado de PinhoAmaral, MarinaKimpara, Estevão Tomomitsu2023-12-18T18:42:48Zoai:ojs.pkp.sfu.ca:article/3923Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2023-12-18T18:42:48Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)false |
dc.title.none.fl_str_mv |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
title |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
spellingShingle |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate de Lima , Leonardo Custódio |
title_short |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
title_full |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
title_fullStr |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
title_full_unstemmed |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
title_sort |
Influence of substrate, cement and aging on the biaxial flexural strength of lithium disilicate |
author |
de Lima , Leonardo Custódio |
author_facet |
de Lima , Leonardo Custódio Miranda, Jean Soares de Carvalho, Ronaldo Luís Almeida Barcellos, Aline Serrado de Pinho Amaral, Marina Kimpara, Estevão Tomomitsu |
author_role |
author |
author2 |
Miranda, Jean Soares de Carvalho, Ronaldo Luís Almeida Barcellos, Aline Serrado de Pinho Amaral, Marina Kimpara, Estevão Tomomitsu |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
de Lima , Leonardo Custódio Miranda, Jean Soares de Carvalho, Ronaldo Luís Almeida Barcellos, Aline Serrado de Pinho Amaral, Marina Kimpara, Estevão Tomomitsu |
description |
Objective: To evaluate the biaxial flexural strength (BFS) of lithium disilicate (L), cemented on different substrates (epoxy resin - E and metal - M) with dual-cure resin cement (Rc) and zinc phosphate cement (Zc), not aged, thermally aged (TC) or thermo-mechanical aged (TC/MC). Material and Methods: Disks of L, E, and M were fabricated, and the cementation was performed according to the following groups: ERc (L+E+Rc); MRc (L+M+Rc); MZc (L+M+Zc); EZc (L+E+Zc). Ten samples from each described group were tested in BFS, ten more samples were subjected to TC (1×104 cycles between 5 ºC and 55 ºC water), and the last 10 samples were subjected to TC/MC (MC: 1.2×106 cycles, 50 N, 3.8 Hz). The BFS test was performed and scanning electron microscopy (SEM) was performed to evaluate the failure mode. The effect of the cementation strategy (cement/substrate) was compared in each aging method and the effect of the aging method was evaluated for each cementation strategy by one-way ANOVA and Tukey post-hoc test (a=0.05). Results: The strength values were highest to M (237.8 ~ 463.9 MPa), in comparison to the E (41.03 ~ 66.76 MPa), despite aging and luting agent. Flexural strength data decreased after TC and TC/MC in groups cemented with Zc, but was stable when cemented with Rc. SEM analysis indicated that failure origins were located at the tensile surface of the L. Conclusion: Lithium disilicate discs cemented to the metallic substrate presented the highest biaxial flexural strength. The cementation with dual-cure resin cement did not decrease BFS after aging. KEYWORDS Aging; Cementation; Ceramics; Flexural strength; Lithium disilicate. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10-16 |
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/3923 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/3923 |
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/3923/4671 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Brazilian Dental Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Brazilian Dental Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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. 26 No. 4 (2023): Oct - Dec / 2023 - Published Oct 2023 Brazilian Dental Science; v. 26 n. 4 (2023): Oct - Dec / 2023 - Published Oct 2023 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_ |
1800214394728087552 |