Permeability of human dentin after bonding with Single Bonda, AdhSEe or G-Bondd using the manufacturer’s instructions, or after pretreatment with 2.7% potassium oxalate (pH 2.7), or after sequential pretreatment with 5.25% NaOCl followed by oxalate, after 1 day or 2 months (from Abu-Nawareg67, Adhesive sealing of dentin, Cairo University, PhD Thesis, 2011, with permission).