If they’re three years old and under with no tooth decay, kids can use a lower-strength toothpaste, but the NHS says it should be at least 1,000ppm fluoride.

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Lakeland had been one of the five cities in Polk County that still adds fluoride to its drinking water, along with Bartow, Auburndale, Haines City and Lake Alfred.

Water fluoridation is effective in preventing tooth decay overall, but there are greater benefits for children from lower socioeconomic backgrounds, University of Queensland research has found.

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