title: Scanning electron microscopic studies on the direct bonding system.
mesh_terms: D001840:Dental Bonding / Q000009:adverse effects; D003743:Dental Enamel / Q000166:cytology* / Q000187:drug effects; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010756:Phosphoric Acids / Q000494:pharmacology
chemical_list: D010756:Phosphoric Acids