Fig. 1From: Dentin bonding performance of experimental one-step adhesives after incorporation of POOH–SiO2 nanoparticlesSchematic representation of graft polymerization of phosphate (POOH) from acidic phosphate monomer (HEMA-P) on SiO2 nanoparticles. The grafting of POOH on the SiO2 nanoparticles was carried through a silane-coupling agent (γ-MPTS)Back to article page