title: Chemical changes in human enamel demineralization by etching agent.
mesh_terms: D000134:Acid Etching, Dental; D055598:Chemical Phenomena; D002621:Chemistry; D001840:Dental Bonding; D003743:Dental Enamel / Q000032:analysis* / Q000187:drug effects*; D006801:Humans; D006882:Hydroxyapatites; D010756:Phosphoric Acids / Q000494:pharmacology
chemical_list: D006882:Hydroxyapatites; D010756:Phosphoric Acids