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Effect of grape seed extract-containing phosphoric acid formulations on bonding to enamel and dentin
Paludo, Tamara; Marcondes, Maurem Leitão; Souto, André Arigony; Lopes, Guilherme Carpena; Loguércio, Alessandro Dourado; Spohr, Ana Maria.
Afiliação
  • Paludo, Tamara; Pontifícia Universidade Católica do Rio Grande do Sul. Department of Restorative Dentistry. Porto Alegre. BR
  • Marcondes, Maurem Leitão; Pontifícia Universidade Católica do Rio Grande do Sul. Department of Restorative Dentistry. Porto Alegre. BR
  • Souto, André Arigony; Pontifícia Universidade Católica do Rio Grande do Sul. Department of Chemistry. Porto Alegre. BR
  • Lopes, Guilherme Carpena; Universidade Federal de Santa Catarina. Department of Operative Dentistry. Florianópolis. BR
  • Loguércio, Alessandro Dourado; Universidade Estadual de Ponta Grossa. Department of Restorative Dentistry. Ponta Grossa. BR
  • Spohr, Ana Maria; Pontifícia Universidade Católica do Rio Grande do Sul. Department of Restorative Dentistry. Porto Alegre. BR
Braz. oral res. (Online) ; 33: e098, 2019. tab, graf
Article em En | LILACS | ID: biblio-1039306
Biblioteca responsável: BR1.1
ABSTRACT
Abstract The aim was to evaluate the effect of 2% grape seed extract (GSE) containing phosphoric acid (PhA) on the bond strength to enamel and dentin. The control group was 37% PhA. The following three PhA formulations with 2% GSE and 20% ethanol were obtained GSE5 = 5% PhA; GSE10 = 10% PhA; and GSE20 = 20% PhA. The enamel and dentin surfaces of molars were etched with the acid solutions, followed by Scotchbond Multi-Purpose adhesive and composite resin application. The tensile bond strength (TBS) test evaluated the bond to enamel after 24 h, and the microtensile bond strength (μTBS) test evaluated the bond to dentin after 24 h and 12-month water storage. Etched enamel and dentin were observed by scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. The TBS data were submitted to one-way ANOVA, while µTBS data were submitted to two-way ANOVA and Tukey's test (α = 0.05). The TBS (MPa) to enamel did not significantly differ among the control (48.1 ± 15.7), GSE5 (46.1 ± 9.6), GSE10 (49.8 ± 13.6) and GSE20 (44.1 ± 11.9) groups (p = 0.537). The µTBS (MPa) to dentin of the control (28.4 ± 14.4) and GSE20 (24.1 ± 8.1) groups were significantly higher than those of the GSE5 (16.8 ± 7.4) and GSE10 (17.5 ± 6.6) groups at 24 h (p < 0.006). After 12-month storage, only GSE5 (21.0 ± 7.8) and GSE10 (17.6 ± 8.0) did not show significantly decreased μTBS (p > 0.145). SEM micrographs showed a shallower enamel etching pattern for GSE5. AFM images showed the formation of collagenous globular structures for GSE5 and GSE10. The different acid solutions did not influence the TBS to enamel, and the µTBS to dentin was stable over time when dentin was etched with GSE5 and GSE10.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Ácidos Fosfóricos / Condicionamento Ácido do Dente / Colagem Dentária / Esmalte Dentário / Dentina / Extrato de Sementes de Uva Tipo de estudo: Evaluation_studies Limite: Adolescent / Adult / Humans Idioma: En Revista: Braz. oral res. (Online) Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Ácidos Fosfóricos / Condicionamento Ácido do Dente / Colagem Dentária / Esmalte Dentário / Dentina / Extrato de Sementes de Uva Tipo de estudo: Evaluation_studies Limite: Adolescent / Adult / Humans Idioma: En Revista: Braz. oral res. (Online) Assunto da revista: ODONTOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil