A method of determining the tensile bond strength of fissure sealant materials.

A simple and reliable method for the determination of the tensile bond strength of sealant materials to enamel is described. Using this method, the tensile bond strength of Nuva Seal to enamel after 7 days in water at 37(°) C was found to be 36·6±9·0 kg/cm(2) with a coefficient of variation of 24·5%. This method would be useful for screening of new and modified sealant materials and the evaluation of new application procedures to ensure an adequate tensile bond strength for clinical use. A tensile bond strength in the range 26-36 kg/cm(2) could be used as the base line value for comparison of new materials and procedures involving fissure sealants.