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A blind study of enamel opacities and dental caries prevalance after eight years of fluoridation of water






Brit. Dent. J, 119: 319-322

A blind study of enamel opacities and dental caries prevalance after eight years of fluoridation of water

A blind study of enamel opacities and dental caries in permanent teeth was on children 8 years old who had spent their whole lives in the fluoridated or control areas of Anglesey, N. Wales. There was no evidence of any obvious or objectionable mottling of teeth in the fluoridation area. Enamel opacities occurred in 36% of the children; in 24% these were of the idiopathic type, and in only 12% could they be classified as questionable or very mild fluorosis. In the control area idiopathic opacities occurred in 47% of the children, many of them more unsightly than any found in the fluoridation area. For practical purposes the examination for dental caries in permanent teeth of of children 8 years old can be confined to the first permanent molars. In 38.5% of residents in the fluoridation area these teeth were caries-free compared with 23.8% in the control area. In 12.1 and 27.7% of the children, respectively, all 4 first permanent molars were carious. There were significant differences between the groups in means of decayed, missing or filled teeth or surfaces, between 33 and 46% less in the fluoridation area.


Accession: 014307382

PMID: 14315607



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