Journal
JOURNAL OF DENTISTRY
Volume 28, Issue 6, Pages 389-393Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0300-5712(00)00005-1
Keywords
water fluoridation; deprivation; townsend; tooth decay; DMFT; children; electoral wards
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Aim: To examine the influence of water fluoridation, and socio-economic deprivation on tooth decay in the permanent dentition of 12 year old children. Setting: The North of England, fluoridated Newcastle and non-fluoridated Liverpool. A total of 6,638 children were examined. Outcome Measures: Multiple Regression analysis of fluoride status, mean electoral ward DMFT in 1992/93 and ward Townsend Scores from the 1991 census. Results: Social deprivation and tooth decay were significantly correlated in areas with and without water fluoridation. Multiple linear regression showed a statistically significant interaction between ward Townsend score, mean DMFT and water fluoridation, showing that the more deprived the area the greater the reduction in tooth decay. At a Townsend score of zero (the English average) there was a predicted 37% reduction in decay in 12-year-olds in fluoridated wards. Conclusions: Tooth decay is strongly associated with social deprivation. The findings confirm that the implementation of water fluoridation has markedly reduced tooth decay in 12-year-old children and that socio-economic dental health inequalities are reduced. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
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