Abstract
The objective of this study is to evaluate the effect of ultrasonic application of an adhesive system in dry and wet etched dentin, immediately and 6-month after restorative procedures. The occlusal enamel of 40 human molars will be removed to expose a flat of dentine surface, which will be randomized into 4 groups. The conventional Adper Scotchbond Multipurpose Plus (3M) adhesive system …