title: Ultrastructural study of human dental enamel using selected-area argon--ion-beam thinning.
mesh_terms: D000328:Adult; D001031:Apatites; D001128:Argon; D003461:Crystallography; D003743:Dental Enamel / Q000002:abnormalities / Q000032:analysis / Q000648:ultrastructure*; D003804:Dentin / Q000648:ultrastructure; D006801:Humans; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D013048:Specimen Handling / Q000379:methods*
chemical_list: D001031:Apatites; D001128:Argon