title: Oral hygiene campaign in Liverpool.
mesh_terms: D002648:Child; D004245:DMF Index; D004739:England; D005260:Female; D006267:Health Education, Dental; D006306:Health Surveys; D006801:Humans; D008297:Male; D009909:Oral Health; D010512:Periodontal Index; D014078:Tooth Eruption