A classification of residential neighbourhoods (ACORN) in relation to dental health and dental health behaviours.

Five-year-old children in two district health authorities in the North Western Region of England were examined during 1989-90. Questionnaires were issued to parents to determine whether dental health and related behaviours were associated with socio-economic status. Parents of 1858 children in Salford (response rate = 78 per cent) and 1691 in Trafford (response rate = 81 per cent) returned the questionnaires. Their replies were analysed by dividing the children into a hierarchy according to a classification of residential neighbourhood (ACORN). Significantly fewer in the highest of three Divisions in both districts had suffered from toothache and had undergone a general anaesthetic to have teeth extracted. They were also more likely to have had their teeth brushed with toothpaste by their first birthday and to have visited the dentist by their second. Because ACORN had detected these differences in dental health related behaviour it was possible to identify localities towards which dental health promotion activities can be directed.