Action of urea solutions on human enamel surfaces.
D000293:Adolescent; D000328:Adult; D002648:Child; D003743:Dental Enamel / Q000033:anatomy & histology* / Q000187:drug effects; D006801:Humans; D008855:Microscopy, Electron, Scanning; D013997:Time Factors; D014508:Urea / Q000008:administration & dosage / Q000494:pharmacology*
D014508:Urea