title: [Study on the effects of Ohaguro (traditional tooth blacking) on tooth enamel].
mesh_terms: D003743:Dental Enamel / Q000187:drug effects*; D004492:Edetic Acid; D006801:Humans; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D007501:Iron / Q000494:pharmacology*; D008854:Microscopy, Electron; D013634:Tannins / Q000494:pharmacology
chemical_list: D013634:Tannins; D004492:Edetic Acid; D007501:Iron