Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/78523
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Type: Journal article
Title: Effects of fluoridated drinking water on dental caries in Australian adults
Author: Slade, G.
Sanders, A.
Do, L.
Roberts-Thomson, K.
Spencer, A.
Citation: Journal of Dental Research, 2013; 92(4):376-382
Publisher: Inter Amer Assoc Dental Research
Issue Date: 2013
ISSN: 0022-0345
1544-0591
Statement of
Responsibility: 
G.D. Slade, A.E. Sanders, L. Do, K. Roberts-Thomson, and A.J. Spencer
Abstract: Systematic reviews produce conflicting conclusions regarding dental caries-preventive effects of water fluoridation in adults. The authors investigated the relationship using data from the nationally representative 2004-2006 Australian National Survey of Adult Oral Health. Effects were compared between the pre-fluoridation cohort born before 1960 (n = 2,270) and the cohort born between 1960 and 1990 (n = 1,509), when widespread implementation of fluoridation increased population coverage from < 1% to 67%. Residential history questionnaires determined the percentage of each person's lifetime exposed to fluoridated water. Examiners recorded decayed, missing, and filled teeth (DMF-Teeth) and decayed and filled tooth surfaces (DF-Surfaces). Socio-demographic and preventive dental behaviors were included in multivariable least-squares regression models adjusted for potential confounding. In fully adjusted models, > 75% of lifetime exposure to fluoridation relative to < 25% of lifetime exposure was associated with 11% and 10% fewer DMF-Teeth in the pre-1960 (p < .0001) and 1960-1990 cohorts (p = .018), respectively. Corresponding reductions in DF-Surfaces were 30% (p < .001) and 21% (p < .001). Findings for intermediate fluoridation exposure suggested a dose-response relationship. Results were consistent in sensitivity analyses accounting for missing data. In this nationally representative sample of Australian adults, caries-preventive effects of water fluoridation were at least as great in adults born before widespread implementation of fluoridation as after widespread implementation of fluoridation.
Keywords: community water fluoridation
health surveys
adult
DMF Index
cohort effect.
Rights: © International & American Associations for Dental Research
DOI: 10.1177/0022034513481190
Grant ID: http://purl.org/au-research/grants/nhmrc/299060
http://purl.org/au-research/grants/nhmrc/349514
http://purl.org/au-research/grants/nhmrc/349537
Published version: http://dx.doi.org/10.1177/0022034513481190
Appears in Collections:Aurora harvest 4
Dentistry publications

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