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Type: Journal article
Title: The effect of lifetime fluoridation exposure on dental caries experience of younger rural adults
Author: Crocombe, L.
Brennan, D.
Slade, G.
Stewart, J.
Spencer, A.
Citation: Australian Dental Journal, 2015; 60(1):30-37
Publisher: Wiley
Issue Date: 2015
ISSN: 0045-0421
Statement of
LA Crocombe, DS Brennan, GD Slade, JF Stewart, and AJ Spencer
Abstract: BACKGROUND: The aim of this study was to confirm whether the level of lifetime fluoridation exposure is associated with lower dental caries experience in younger adults (15-46 years). METHODS: Data of the cohort born between 1960 and 1990 residing outside Australia's capital cities from the 2004-2006 Australian National Survey of Adult Oral Health were analysed. Residential history questionnaires were used to determine the percentage of each person's lifetime exposure to fluoridated water (<50%/50+%). Examiners recorded decayed, missing and filled permanent teeth (DMFT). Socio-demographic variables, periodontal risk factors, and access to dental care were included in multivariable least-squares regression models. RESULTS: In bivariate analysis, the higher level of fluoridation category had significantly lower DMFT (mean 6.01 [SE=0.62]) than the lower level of fluoridation group (9.14 [SE=0.73] p<0.01) and lower numbers of filled teeth (4.08 [SE=0.43], 7.06 [SE=0.62], p<0.01). In multivariate analysis, the higher number of full-time equivalent dentists per 100,000 people was associated with a lower mean number of missing teeth (regression coefficient estimate=-1.75, p=0.03), and the higher level of water fluoridation with a lower mean DMFT (-2.45, p<0.01) and mean number of filled teeth (-2.52, p<0.01). CONCLUSIONS: The higher level of lifetime fluoridation exposure was associated with substantially lower caries experience in younger rural adults, largely due to a lower number of filled teeth.
Keywords: Allied health; dental health; health outcomes research; oral epidemiology; rural health
Rights: © 2015 Australian Dental Association
DOI: 10.1111/adj.12243
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