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Longitudinal bond strength evaluation using the deproteinized dentin technique.
Silva, Gleyce Oliveira; Barcellos, Daphne Camara; Pucci, Cesar Rogerio; Borges, Alessandra Buhler; Torres, Carlos Rocha Gomes.
Afiliação
  • Silva GO; Clinical Research Academic Group (GAPEC), Sao Jose dos Campos School of Dentistry, Sao Paulo State University, SP, Brazil.
Gen Dent ; 57(4): 328-33; quiz 334-5, 2009.
Article em En | MEDLINE | ID: mdl-19903611
This study evaluated bond strength to dentin as a result of storage time for conventional adhesive systems (with or without collagen) that had been deproteinized with 10% sodium hypochlorite (NaOCl). For this study, 72 human molars were sectioned in a mesiodistal axial plane and embedded in acrylic resin; at that point, the vestibular and lingual surfaces were worn down with abrasive paper. Acid etching was performed for 15 seconds (using 37% phosphoric acid) and the specimens were divided into 12 groups (n = 6), depending on the adhesive system used, the dentin treatment performed, and the length of evaluation (24 hours or six months). A resin composite was inserted over the prepared area with the aid of a metal matrix. Following a mechanical shear test, fractured surfaces were analyzed by stereomicroscope and the data were submitted to ANOVA and Tukey's test. It was concluded that the dentin deproteinization treatment with 10% NaOCl improved the bond strength in five of the six groups. The bond strength after 24 hours was significantly higher than the bond strength measured after six months. Of the three adhesive systems tested in this study, DenTASTIC UNO demonstrated the lowest bond strength.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Colagem Dentária / Adesivos Dentinários / Cimentos de Resina / Dentina Limite: Humans Idioma: En Revista: Gen Dent Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Colagem Dentária / Adesivos Dentinários / Cimentos de Resina / Dentina Limite: Humans Idioma: En Revista: Gen Dent Ano de publicação: 2009 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos