Shear bond strength of glass-ionomer cements to dentin: Effects of dentin depth and type of material activation

• Autor(a) principal: PISANESCHI,Elda
• Data de Publicação: 1997
• Outros Autores: CARVALHO,Rubens Corte Real de, MATSON,Edmir
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista de Odontologia da Universidade de São Paulo
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-06631997000500002
• topic: Shear bond strength; Glass ionomer cements; Superficial dentin; Deep dentin; Adhesion

The purpose of this study was to determine, through the shear bond strength of in vitro tests, that the type of glass-ionomer cements (conventional or hybrid) and dentin depth (superficial or deep) are factors that may influence the adhesion of these materials to the dentin structure. Specimens of two conventional glass-ionomer cements (Vidrion R® - SS White and Chelon Fil®- Espe) and a hybrid-glass ionomer cement (Vitremer® - 3M) were separated in groups and prepared for the shear bond strength test. The results submitted to statistical analysis were (all values are in MPa): Group I - Vidrion R - superficial dentin 1.97 (<FONT FACE="Symbol">±</FONT> 0.56); deep dentin 3.15 (<FONT FACE="Symbol">±</FONT> 1.51); Group II - Chelon Fil - superficial dentin 2.43 (<FONT FACE="Symbol">±</FONT> 1.43); deep dentin 3.21 (<FONT FACE="Symbol">±</FONT> 0.89); and Group III - Vitremer - superficial dentin 7.04 (<FONT FACE="Symbol">±</FONT> 2.04); deep dentin 10.30 (<FONT FACE="Symbol">±</FONT> 1.99). There were significant differences between dentin depth and type of materials