title: Scanning electron microscope study of the effect of four different etchants on the enamel surfaces.
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000180:Acrylic Resins / Q000494:pharmacology; D001840:Dental Bonding / Q000379:methods; D003743:Dental Enamel / Q000187:drug effects / Q000648:ultrastructure*; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010756:Phosphoric Acids / Q000494:pharmacology; D014072:Tooth Abrasion / Q000473:pathology
chemical_list: D000180:Acrylic Resins; D010756:Phosphoric Acids; C006903:carbopol 940; C030242:phosphoric acid