title: Is orthodontic screening of 9-year-old school children cost effective?
mesh_terms: D000293:Adolescent; D002648:Child; D003362:Cost-Benefit Analysis; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000175:diagnosis / Q000517:prevention & control*; D008403:Mass Screening / Q000191:economics*; D009972:Orthodontics, Interceptive / Q000191:economics*; D009973:Orthodontics, Preventive / Q000191:economics