Objective. The aim of this study was to synthesize, to characterize and to evaluate the effectson tubular occlusion of new monomer derived from cashew nut shell liquid (CNSL), alsostudying the effects of acid challenge (AC) on dentin surfaces treated with desensitizers.Methods. The intermediary cardanol-epoxy (CNE) was synthesized through epoxidation ofCNSL, followed by synthesis of cardanol-methacrylate-epoxy ...