Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/127612
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Type: Journal article
Title: Effects of water fluoridation on caries experience in the primary dentition in a high caries risk community in Queensland, Australia
Author: Koh, R.
Pukallus, M.
Newman, B.
Foley, M.
Walsh, L.
Seow, W.
Citation: Caries Research, 2015; 49(2):184-191
Publisher: Karger AG
Issue Date: 2015
ISSN: 0008-6568
1421-976X
Statement of
Responsibility: 
Rongzhen Koh, Margaret L. Pukallus, Bruce Newman, Michael Foley, Laurence J. Walsh, W. Kim Seow
Abstract: In December 2008, artificial water fluoridation was introduced for the first time to the Logan-Beaudesert district in the state of Queensland, Australia. The aim of this study was to evaluate the effects of water fluoridation in the primary dentition in this community after a period of 36 months.Children aged 4-9 years with clinical examinations and bitewing radiographs (BWs) taken before water fluoridation (pre-F) were randomly selected as comparison controls for age matched children who had been exposed to a mean period of 36 months of water fluoridation (post-F). A total of 201 sets of pre-F BWs from children (mean age 6.95 ± 1.05 years) and 256 sets of post-F BWs from children (mean age 7.19 ± 1.23 years) attending schools in the district were randomly selected. Caries experience in the primary dentition was determined as decayed, missing or filled teeth/surfaces (dmft/dmfs).The caries prevalence for the pre-F group was 87% compared to 75% in the post-F group (Odds ratio (OR): 0.44, 95% CI: 0.27-0.72). Overall, there was a 19 percent reduction of mean dmft from 4.54 in the pre-F group to 3.66 in the post-F group (p = 0.005). After fluoridation, the dmfs was reduced from 6.68 to 5.17 (p = 0.0056). The distal surfaces of maxillary first primary molars experienced the greatest reduction (26%) in caries experience after water fluoridation (p < 0.001).After only 36 months of water fluoridation there was a significant drop in caries prevalence from 87 to 75% and a 19% reduction in caries experience in a community with one of the highest caries rates in Australia.
Keywords: Water fluoridation; caries experience; primary dentition; low socioeconomic
Rights: © 2015 S. Karger AG, Basel.
DOI: 10.1159/000369864
Grant ID: http://purl.org/au-research/grants/nhmrc/1046779
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