2014
DOI: 10.1590/1981-8637201400040000042764
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Influence of surface treatment on bond strength of resin cements to a nickel alloy

Abstract: Objective To compare the bond strength of two dual-cure resin cements to Ni-Cr alloy test specimens (TS), with and without surface treatment. Methods RelyX ARC and Panavia Fluoro RESUMO ObjetivoComparar a força de adesão de dois cimentos resinosos duais em liga de Ni-Cr, em corpos de prova (CP) com e sem tratamento de superfície. MétodosOs cimentos Rely-X ARC e Panavia Fluoro Cement foram testados. Oitenta CP foram fundidos em liga de níquel, nas dimensões 10mm x 7mm x 2,5mm em um total de 40 pares. Quatro gru… Show more

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“…Base metals have higher free-surface energy and are more reactive than noble and high noble alloys, forming a thicker oxide layer. These oxides provide possible sites for chemical bonding and roughen the metal surface to provide some micromechanical retention ( 5 ). Rubo JH, Pegoraro LF ( 6 ) tested the tensile bond strength of a composite resin cement to various dental alloys.…”
Section: Discussionmentioning
confidence: 99%
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“…Base metals have higher free-surface energy and are more reactive than noble and high noble alloys, forming a thicker oxide layer. These oxides provide possible sites for chemical bonding and roughen the metal surface to provide some micromechanical retention ( 5 ). Rubo JH, Pegoraro LF ( 6 ) tested the tensile bond strength of a composite resin cement to various dental alloys.…”
Section: Discussionmentioning
confidence: 99%
“…This mix was applied to the metal surface, which was then seated on the prepared tooth sample under firm finger pressure. Excess cement was removed from all sides after a brief exposure to blue light of intensity of 500mw/cm2 for 5 seconds per side (as per manufacturer instructions) ( 5 ). A firm finger pressure for 5 min was kept on the metal sample cemented to the teeth to allow complete setting after placement ( 5 ).…”
Section: Methodsmentioning
confidence: 99%
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