METHODS	Each group was divided into 3 subgroups : ( A ) application of 2 coats and one cure : IA-IIA ; ( B ) 2 coats and 2 cures of each adhesive system : IB-IIB ; and ( C ) one coat of each adhesive along with the manufacturers ' B1 flowable resin ( 0.5-mm thick layer ) cured together at once : IC-IIC .\