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Caries experience in urban Tanzanian children 1973-84
H J Mosha1, O Fejerskov, J Langebaek
1Ministry of Health, Dar es Salaam, Tanzania.
Scandinavian Journal of Dental Research
|October 1, 1988
Summary
High fluoride water in Tanzania did not increase childhood caries. Caries levels remained low and stable over a decade, with most lesions concentrated in a small number of children.
Area of Science:
- Dental Public Health
- Fluoride Toxicology
- Epidemiology
Background:
- High water fluoride concentrations (2.0-3.5 ppm) are common in parts of northern Tanzania.
- Previous research indicates a complex relationship between fluoride intake and dental caries prevalence.
- Understanding caries trends in populations with naturally high fluoride exposure is crucial for public health strategies.
Purpose of the Study:
- To assess dental caries status in children residing in a high-fluoride area of Tanzania.
- To evaluate changes in caries prevalence over a 10-year period (1973-1984).
- To analyze the distribution patterns of caries lesions within the studied population.
Main Methods:
- Longitudinal study design involving two cross-sectional surveys.
- Dental caries assessment in children aged [specify age range if available, otherwise omit or generalize] in 1973 and 1984.
- Analysis of water fluoride content in the surveyed urban area.
Main Results:
- Consistently low levels of dental caries were observed in both survey years.
- Minimal increase in caries experience was noted over the 10-year interval, despite high water fluoride.
- A skewed distribution of caries was evident, with a small proportion of children exhibiting the majority of lesions.
- Caries levels were comparable to those in low-fluoride areas, suggesting a protective effect or other contributing factors.
Conclusions:
- Naturally occurring high water fluoride (2.0-3.5 ppm) in this Tanzanian urban area was not associated with increased dental caries in children.
- The findings suggest that factors other than water fluoride levels may significantly influence caries prevalence and experience.
- Public health interventions for caries prevention in this region should consider the unique epidemiological context and potentially explore factors beyond fluoride concentration.