Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian journal of oral sciences (Online) |
Texto Completo: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656155 |
Resumo: | Aim: The roughness and micromorphology of various surface treatments in aged metal-free crowns and the bond strength of these crowns repaired with composite resin (CR) was evaluated in vitro. Methods: A CR core build-up was confectioned in 60 premolars and prepared for metal-free crowns. Prepared teeth were molded with the addition of silicone, and the laboratory ceromer/fiber-reinforced crowns (SR Adoro/Fibrex Lab) were fabricated. Subsequently, the crowns were cemented and artificially aged in a mechanical fatigue device (1.2 X 106 cycles), then divided into 4 groups (n = 15) according to the surface treatment: 1) phosphoric acid etching (PA); 2) PA + silane application; 3) roughening with a diamond bur + PA; and 4) sandblasting with Al2O3 + PA. After the treatments, the crowns (n = 2) were qualitatively analyzed by scanning electron microscope (SEM) and surface roughness (n = 5) was analyzed before and after the surface treatment (Ra parameter). The remaining crowns (n = 8) received standard repair with an adhesive system (Tetric N-Bond) and a nanohybrid CR (Tetric N-Ceram), and the microshear bond strength (SBS) test was performed (0.5 mm/min). Roughness and SBS data were analyzed by one- and two-way ANOVA, respectively, as well as Tukey’s post-test (α = 0.05). Results: Sandblasting with Al2O3 + PA resulted in the highest final roughness and SBS values. The lowest results were observed in the PA group, whereas the silane and diamond bur groups showed intermediate values. Conclusion: It may be concluded that indirect ceromer crowns sandblasted with aluminum oxide prior to PA etching promote increased roughness surface and bond strength values. |
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Brazilian journal of oral sciences (Online) |
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Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crownsEfeito de tratamento na superfície na resistência, rugosidade e morfologia do reparo de coroas envelhecidas sem metaisCeramicsComposite resinsElectron microscope tomographyShear strengthSurface propertiesAim: The roughness and micromorphology of various surface treatments in aged metal-free crowns and the bond strength of these crowns repaired with composite resin (CR) was evaluated in vitro. Methods: A CR core build-up was confectioned in 60 premolars and prepared for metal-free crowns. Prepared teeth were molded with the addition of silicone, and the laboratory ceromer/fiber-reinforced crowns (SR Adoro/Fibrex Lab) were fabricated. Subsequently, the crowns were cemented and artificially aged in a mechanical fatigue device (1.2 X 106 cycles), then divided into 4 groups (n = 15) according to the surface treatment: 1) phosphoric acid etching (PA); 2) PA + silane application; 3) roughening with a diamond bur + PA; and 4) sandblasting with Al2O3 + PA. After the treatments, the crowns (n = 2) were qualitatively analyzed by scanning electron microscope (SEM) and surface roughness (n = 5) was analyzed before and after the surface treatment (Ra parameter). The remaining crowns (n = 8) received standard repair with an adhesive system (Tetric N-Bond) and a nanohybrid CR (Tetric N-Ceram), and the microshear bond strength (SBS) test was performed (0.5 mm/min). Roughness and SBS data were analyzed by one- and two-way ANOVA, respectively, as well as Tukey’s post-test (α = 0.05). Results: Sandblasting with Al2O3 + PA resulted in the highest final roughness and SBS values. The lowest results were observed in the PA group, whereas the silane and diamond bur groups showed intermediate values. Conclusion: It may be concluded that indirect ceromer crowns sandblasted with aluminum oxide prior to PA etching promote increased roughness surface and bond strength values.Avaliou-se in vitro a rugosidade e micromorfologia de diferentes tratamentos superficiais em coroas envelhecidas sem metais e a resistência de união dessas coroas reparadas com resina composta (CR). Um núcleo CR foi confeccionado em 60 pré-molares e preparado para coroas totais sem metal. Os dentes preparados foram moldados com silicone de adição e as coroas de laboratório / coroas reforçadas com fibras (SR Adoro / Fibrex Lab) foram fabricadas. Posteriormente, as coroas foram cimentadas e envelhecidas artificialmente em um dispositivo mecânico de fadiga (1,2 x 106 ciclos), sendo então divididas em 4 grupos (n = 15) de acordo com os tratamentos de superfície: 1) condicionamento com ácido fosfórico [PA]; 2) aplicação de PA + silano; 3) rugosidade com uma broca de diamante + PA; e 4) jateamento com Al2O3 + PA. Após os tratamentos, as coroas (n = 2) foram analisadas qualitativamente por microscopia eletrônica de varredura (MEV); e a rugosidade superficial (n = 5) foi analisada antes e após o tratamento de superfície (parâmetro Ra). As coroas remanescentes (n = 8) receberam um reparo padrão com um sistema adesivo (Tetric N-Bond) e um CR nanohíbrido (Tetric N-Ceram) e o teste de resistência de união de microcisalhamento (SBS) (0,5 mm / min). Os dados de rugosidade e SBS foram analisados por ANOVA two-way e one-way, respectivamente, e pós-teste de Tukey (α = 0,05). O Jateamento com Al2O3 + PA resultou na maior rugosidade final e valores de SBS; e os menores resultados foram observados para o grupo do ácido fosfórico; enquanto os grupos silano e diamantado apresentaram valores intermediários. Pode-se concluir que as coroas cerômeras indiretas jateadas com óxido de alumínio antes do ataque com ácido fosfórico promovem aumento dos valores de rugosidade superficial e resistência à adesão.Universidade Estadual de Campinas2020-05-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTexto e imagensinfo:eu-repo/semantics/otherapplication/pdfhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/865615510.20396/bjos.v19i0.8656155Brazilian Journal of Oral Sciences; v. 19 (2020): Continuous Publication; e206155Brazilian Journal of Oral Sciences; Vol. 19 (2020): Continuous Publication; e2061551677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPenghttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656155/22339Brazil; ContemporanyPonta Grossa, BrasilCopyright (c) 2020 Brazilian Journal of Oral Sciencesinfo:eu-repo/semantics/openAccessGruber, Yançanã LuizyBakaus, Thaís EmanuelleBittencourt, Bruna FortesGomes, João Carlos Reis, AlessandraGomes, Giovana Mongruel2021-02-08T13:06:05Zoai:ojs.periodicos.sbu.unicamp.br:article/8656155Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2021-02-08T13:06:05Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false |
dc.title.none.fl_str_mv |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns Efeito de tratamento na superfície na resistência, rugosidade e morfologia do reparo de coroas envelhecidas sem metais |
title |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns |
spellingShingle |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns Gruber, Yançanã Luizy Ceramics Composite resins Electron microscope tomography Shear strength Surface properties |
title_short |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns |
title_full |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns |
title_fullStr |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns |
title_full_unstemmed |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns |
title_sort |
Effect of surface treatments on repair strength, roughness and morphology in aged metal-free crowns |
author |
Gruber, Yançanã Luizy |
author_facet |
Gruber, Yançanã Luizy Bakaus, Thaís Emanuelle Bittencourt, Bruna Fortes Gomes, João Carlos Reis, Alessandra Gomes, Giovana Mongruel |
author_role |
author |
author2 |
Bakaus, Thaís Emanuelle Bittencourt, Bruna Fortes Gomes, João Carlos Reis, Alessandra Gomes, Giovana Mongruel |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Gruber, Yançanã Luizy Bakaus, Thaís Emanuelle Bittencourt, Bruna Fortes Gomes, João Carlos Reis, Alessandra Gomes, Giovana Mongruel |
dc.subject.por.fl_str_mv |
Ceramics Composite resins Electron microscope tomography Shear strength Surface properties |
topic |
Ceramics Composite resins Electron microscope tomography Shear strength Surface properties |
description |
Aim: The roughness and micromorphology of various surface treatments in aged metal-free crowns and the bond strength of these crowns repaired with composite resin (CR) was evaluated in vitro. Methods: A CR core build-up was confectioned in 60 premolars and prepared for metal-free crowns. Prepared teeth were molded with the addition of silicone, and the laboratory ceromer/fiber-reinforced crowns (SR Adoro/Fibrex Lab) were fabricated. Subsequently, the crowns were cemented and artificially aged in a mechanical fatigue device (1.2 X 106 cycles), then divided into 4 groups (n = 15) according to the surface treatment: 1) phosphoric acid etching (PA); 2) PA + silane application; 3) roughening with a diamond bur + PA; and 4) sandblasting with Al2O3 + PA. After the treatments, the crowns (n = 2) were qualitatively analyzed by scanning electron microscope (SEM) and surface roughness (n = 5) was analyzed before and after the surface treatment (Ra parameter). The remaining crowns (n = 8) received standard repair with an adhesive system (Tetric N-Bond) and a nanohybrid CR (Tetric N-Ceram), and the microshear bond strength (SBS) test was performed (0.5 mm/min). Roughness and SBS data were analyzed by one- and two-way ANOVA, respectively, as well as Tukey’s post-test (α = 0.05). Results: Sandblasting with Al2O3 + PA resulted in the highest final roughness and SBS values. The lowest results were observed in the PA group, whereas the silane and diamond bur groups showed intermediate values. Conclusion: It may be concluded that indirect ceromer crowns sandblasted with aluminum oxide prior to PA etching promote increased roughness surface and bond strength values. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05-05 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Texto e imagens info:eu-repo/semantics/other |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656155 10.20396/bjos.v19i0.8656155 |
url |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656155 |
identifier_str_mv |
10.20396/bjos.v19i0.8656155 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8656155/22339 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Brazilian Journal of Oral Sciences info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Brazilian Journal of Oral Sciences |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporany Ponta Grossa, Brasil |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
publisher.none.fl_str_mv |
Universidade Estadual de Campinas |
dc.source.none.fl_str_mv |
Brazilian Journal of Oral Sciences; v. 19 (2020): Continuous Publication; e206155 Brazilian Journal of Oral Sciences; Vol. 19 (2020): Continuous Publication; e206155 1677-3225 reponame:Brazilian journal of oral sciences (Online) instname:Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
instname_str |
Universidade Estadual de Campinas (UNICAMP) |
instacron_str |
UNICAMP |
institution |
UNICAMP |
reponame_str |
Brazilian journal of oral sciences (Online) |
collection |
Brazilian journal of oral sciences (Online) |
repository.name.fl_str_mv |
Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP) |
repository.mail.fl_str_mv |
brjorals@fop.unicamp.br||brjorals@fop.unicamp.br |
_version_ |
1800216402864373760 |