[Down's syndrome patients and their dental problems].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003730:Dental Care for Persons with Disabilities; D004314:Down Syndrome; D006801:Humans; D007564:Japan; D010510:Periodontal Diseases / Q000209:etiology; D014071:Tooth Abnormalities / Q000209:etiology*