Need and demand for orthodontic treatment.
D000293:Adolescent; D000328:Adult; D001294:Attitude to Health; D002648:Child; D003695:Delivery of Health Care; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D009971:Orthodontics, Corrective; D010290:Parents; D012924:Social Conditions; D012959:Socioeconomic Factors