Active application of primer acid on acid-treated enamel: Influence on the bond effectiveness of self-etch adhesives systems.

Aim: Evaluate the composite-to-enamel bond after passive or active application of self-etching primer systems on polished or pre-etched enamel with phosphoric acid.

Materials And Methods: Two self-etch adhesives systems (SEAS) were used: Clearfil SE Bond and Easy Bond. Third human molars were divided into 8 groups (N = 10).