title: Dental stains and their relationship to periodontal diseases in children.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003116:Color; D005260:Female; D005891:Gingivitis / Q000209:etiology*; D006801:Humans; D008297:Male; D010510:Periodontal Diseases / Q000209:etiology; D014075:Tooth Discoloration / Q000150:complications* / Q000473:pathology