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Salt fluoridation: a meta-analysis of its efficacy for caries prevention.

V Yengopal, U M E Chikte, S Mickenautsch, L B Oliveira, A Bhayat

Community Dentistry, Division of Public Oral Health, University of the Witwatersrand Johannesburg, 7 York Rd, Parktown, Johannesburg 2193, South Africa.

Journal Article: SADJ: journal of the South African Dental Association = tydskrif van die Suid-Afrikaanse Tandheelkundige Vereniging 03/2010; 65(2):60-4, 66-7.

Abstract

The aim of this meta-analysis was to assess the caries preventive effect of Salt fluoridation (SF) in the permanent dentition in children. THE OBJECTIVES WERE TO COMPARE: (1) the caries preventive effects of SF versus no exposure in different age cohorts (6-8; 9-12; and 13-15 years old); (2) SF versus other community based interventions (milk or water fluoridation [WF]).
9 English and 2 non-English databases were searched for papers that reported on the caries preventive effect of groups (with controls) that were exposed to SF in the form of mean DMFT scores with standard deviations. Differences in exposed and nonexposed groups were computed on the basis of weighted mean differences (WMDs) with 95% confidence intervals (CIs).
For 6-8 year olds, the pooled reduction in DMFT scores was -0.98 [95% CI: -1.68 to -0.29]; for 9-12 year olds, it was -2.13 [95% CI: -2.55 to -1.70] and for the 13-15 year old groups, -4.22 [95% CI: -6.84 to -1.55]. All the analyses favoured the SF groups (p <0.001). For SF versus WF, there was no difference (-0.11 reduction [95% CI: -0.29 to +0.07]).
Within limitations, the pooled estimates of the WMDs for the different age cohorts favoured SF versus no exposure.

Source: PubMed

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Keywords

13-15 year old groups
 
2 non-English databases
 
6-8 year olds
 
9 English
 
9-12 year olds
 
95% confidence intervals
 
caries preventive effect
 
caries preventive effects
 
differences
 
different age cohorts
 
DMFT scores
 
meta-analysis
 
nonexposed groups
 
permanent dentition
 
pooled estimates
 
Salt fluoridation
 
SF groups
 
standard deviations
 
water fluoridation [WF]
 
weighted