Tensile bond strengths of an electrolytically and chemically etched base metal.

This study compared the tensile bond strengths of a Ni-Cr-Be alloy electrolytically etched and chemically etched with three commercially available gels. Etched metal cylinders were bonded end-to-end with a resin luting agent and subsequently tested for tensile strength. Mean bond strengths and the character of bond failure were recorded. Significant differences were found between the electrolytically and chemically etched specimens.