Impact of reducing water fluoride on dental caries and fluorosis

dc.availability.bitstreamdarragh.beecher@ucc.ieen
dc.contributor.authorJames, Patrice
dc.contributor.authorHarding, Máiréad
dc.contributor.authorBeecher, Darragh
dc.contributor.authorBrowne, Deirdre
dc.contributor.authorCronin, Michael
dc.contributor.authorGuiney, Helena
dc.contributor.authorO'Mullane, Denis
dc.contributor.authorWhelton, Helen
dc.contributor.funderHealth Research Boarden
dc.contributor.funderOral Health Office of the Health Services Executive, Irelanden
dc.contributor.funderDepartment of Health, Irelanden
dc.contributor.funderHealth Service Executive, Irelanden
dc.date.accessioned2021-01-12T13:04:52Z
dc.date.available2021-01-12T13:04:52Z
dc.date.issued2020-12-21
dc.date.updated2021-01-06T15:17:33Z
dc.description.abstractGuidance intended to reduce fluoride toothpaste ingestion in early childhood was introduced in Ireland in 2002. In 2007, water fluoride concentration was adjusted from 0.8–1.0 to 0.6–0.8 ppm. The objective of this study was to determine the difference in caries and fluorosis levels following introduction of these 2 policy measures. A before-and-after study compared caries and fluorosis in random samples of 8-y-olds in Dublin (n = 707) and Cork-Kerry (n = 1148) in 2017 with 8-y-olds in Dublin (n = 679) and Cork-Kerry (n = 565) in 2002. Dentinal caries experience (primary teeth, d3vcmft(cde)) and fluorosis (permanent teeth, Dean’s index of very mild or higher) were clinically measured. Lifetime exposure to community water fluoridation (CWF) was classified as “full CWF”/“no CWF.” Effect of examination year on caries prevalence and severity and fluorosis prevalence was assessed using multivariate regression adjusting for other explanatory variables. There was little change in commencement of fluoride toothpaste use at ≤24 mo following introduction of toothbrushing guidance. Among children with full CWF, there was no statistically significant difference in caries prevalence or severity between 2017 and 2002. In 2017, caries prevalence was 55% in Dublin (full CWF) and 56% in Cork-Kerry (full CWF), and mean d3vcmft(cde) among children with caries was 3.4 and 3.7, respectively. Caries severity was less in 2017 (mean 4.2) than 2002 (mean 4.9) among children with no CWF (P = 0.039). The difference in caries severity between children with full CWF and no CWF was less in 2017 than in 2002 (interaction P = 0.013), suggesting a reduced benefit for CWF in 2017. In 2017, fluorosis prevalence was 18% in Dublin (full CWF) and 12% in Cork-Kerry (full CWF). Fluorosis was predominantly “very mild” with no statistically significant difference between 2017 and 2002. CWF at 0.6 to 0.8 ppm is an effective caries-preventive measure. Results suggested low uptake of toothbrushing guidance, a reduced caries-preventive effect for CWF in primary teeth, and no reduction in fluorosis following introduction of the policy measures.en
dc.description.sponsorshipHealth Research Board, Ireland (CARG/2012/34); Department of Health and the National Oral Health Office of the Health Services Executive, Ireland.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationJames, P., Harding, M., Beecher, D., Browne, D., Cronin, M., Guiney, H., O’Mullane, D. and Whelton, H. (2020) 'Impact of Reducing Water Fluoride on Dental Caries and Fluorosis', Journal of Dental Research, (8 pp). doi: 10.1177/0022034520978777en
dc.identifier.doi10.1177/0022034520978777en
dc.identifier.endpage8en
dc.identifier.issn1544-0591
dc.identifier.journaltitleJournal of Dental Researchen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/10898
dc.language.isoenen
dc.publisherSage Publicationsen
dc.relation.urihttps://journals.sagepub.com/doi/10.1177/0022034520978777
dc.rights© International & American Associations for Dental Research 2020en
dc.subjectWater fluoridationen
dc.subjectDean’s indexen
dc.subjectFluoride toothpasteen
dc.subjectDental health surveysen
dc.subjectPrevalenceen
dc.subjectPublic healthen
dc.titleImpact of reducing water fluoride on dental caries and fluorosisen
dc.typeArticle (peer-reviewed)en
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