Bonding to Enamel -- Etched Enamel Structure and Topography: Interface with Materials -- Bonding of Resinous Materials on Primary Enamel -- Bond Strength to Enamel -- Orthodontic Bonding to Wet Enamel with Water-Insensitive and Water-4 Activated Orthodontic Adhesive Resins -- Bonding to Dentine -- Bonding to Dentin: Smear Layer and the Process of Hybridization -- In Situ Photo-Polymerisation an…