Effect of Hydrophobic, Neutral Adhesive on the Dentin Bond Strength of Self-etching Adhesive

Objectives: This study investigated the hypothesis that the dentin bond strength of self-etching adhesives (SEAs) may be improved by applying a coat of hydrophobic, neutral adhesive resin in addition to SEA. Method and Materials: The bond strengths of two SEAs- Experimental SEA (EX) and Adper Prompt (AP)- were measured with three bonding protocols. The D/E resin of All-Bond 2 was applied as the hydrophobic, neutral adhesive. Clearfil SE Bond (SE, self-etching primer system) and All-Bond 2 (AB, total etchin