In part I of this study, it was reported that high shear bon strengths to dentin were obtained by using a particular dentin-enamel bonding system on wet dentin. Because it would be difficult to dry the enamel without drying the dentin, an investigation was undertaken to determine if the treatment of enaemel surfaces with various phosphoric acid concentrations would be successful on wet enamel using the same bonding system. It was discovered that the bond strengths to etched and wet enamel using a particular dentin-enamel bonding system were equal to or higher than bond strengths to etched and dry enamel.