title: Enamel decalcification in primary schoolchildren.
mesh_terms: D000293:Adolescent; D002128:Calcium Metabolism Disorders / Q000453:epidemiology*; D002648:Child; D003649:Decalcification, Pathologic / Q000453:epidemiology*; D003743:Dental Enamel; D005260:Female; D006801:Humans; D008297:Male; D009971:Orthodontics, Corrective / Q000009:adverse effects; D014074:Tooth Calcification