title: An orthodontic service in Northern Ireland--a review.
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003752:Dental Health Services / Q000458:organization & administration; D006801:Humans; D008310:Malocclusion / Q000628:therapy; D009660:Northern Ireland; D009971:Orthodontics, Corrective; D013222:State Medicine