December 2012

Volume 29, Issue 4

Caries status in 16 year-olds with varying exposure to water fluoridation in Ireland

Authors: J. Mullen J. McGaffin N. Farvardin S. Brightman C. Haire R. Freeman
doi: 10.1922/CDH_2713Mullen04

Abstract

Most of the Republic of Ireland’s public water supplies have been fluoridated since the mid-1960s while Northern Ireland has never been fluoridated, apart from some small short-lived schemes in east Ulster. Objective: This study examines dental caries status in 16 year-olds in a part of Ireland straddling fluoridated and non-fluoridated water supply areas and compares two methods of assessing the effectiveness of water fluoridation. The cross-sectional survey tested differences in caries status by two methods: 1, Estimated Fluoridation Status as used previously in national and regional studies in the Republic and in the All-Island study of 2002; 2, Percentage Lifetime Exposure, a modification of a system described by Slade in 1995 and used in Australian caries research. Methods: Adolescents were selected for the study by a two-part random sampling process. Firstly, schools were selected in each area by creating three tiers based on school size, and selecting schools randomly from each tier. Then random sampling of 16-year-olds from these schools, based on a pre-set sampling fraction for each tier of schools. Results: With both systems of measurement, significantly lower caries levels were found in those children with the greatest exposure to fluoridated water when compared to those with the least exposure. Conclusions: The survey provides further evidence of the effectiveness in reducing dental caries experience up to 16 years of age. The extra intricacies involved in using the Percentage Lifetime Exposure method did not provide much more information when compared to the simpler Estimated Fluoridation Status method. Key words: dental caries, fluoridation, lifetime exposure, adolescent, DMF Index, Ireland, environmental exposure

£10 single article

Other articles in this issue

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Editorial - Do we really need another system for recording caries? Thoughts on ICDAS 258-259 £10 single article
Dental Public Health in Action - Maintaining a survey programme during structural change 260-262 £10 single article
Dental health of Irish alcohol/drug abuse treatment centre residents 263-267 £10 single article
Recent trends in incidence and mortality of oral and pharyngeal cancer in Schleswig-Holstein in Northern Germany 268-273 £10 single article
A description of oral health in three French jails 274-278 £10 single article
Dental erosion among 12 year-old Libyan schoolchildren 279-283 £10 single article
Children’s views on the experience of a visual examination and intra-oral photographs to detect dental caries in epidemiological studies 284-288 £10 single article
Child dental anxiety, parental rearing style and referral status of children 289-292 £10 single article
Caries status in 16 year-olds with varying exposure to water fluoridation in Ireland 293-296 £10 single article
Caries prevalence in 12-year-old Cypriot children 297-301 £10 single article
Cost-effectiveness models for dental caries prevention programmes among Chilean schoolchildren 302-308 £10 single article
Industry structures in private dental markets in Finland 309-314 £10 single article
Letter from America: UK and US state-funded dental provision 315-320 £10 single article

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