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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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