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KMID : 0378019750180060806
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New Medical Journal
1975 Volume.18 No. 6 p.806 ~ p.816
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An Epidemiologic and Experimental Study on the Anti-caries Effect of Fluorine in Drinking Water
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Abstract
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Anti-caries effect of fluorine is well known fact and a lot of researches has been conducted.
The objective of present study was to ascertain the relationship between fluoride content in the drinking water, and dental caries prevalence in permanent teeth, and fluorine content in the several layers of human enamel.
The areas selected in this study were Chowol-Myun Kyungkee -Do, Sangsoo -Myun Chunrabuk-Do and Sannai-Myun Chunrabuk-Do where the fluorine content in drinking water were 0.2~0.3p.p.m. (call AREA A below).
Maegok-Myun and Hwangkeum-Myun Chungchungbuk-Do where the fluorine content in drinking water contain 1.1~1.6 p.p.m. were also selected as an area of comparison (call AREA B below). DMF person rate, the fluorine content in the three layers of enamel, mottled index and occurrence of mottled enamel of the children aged 6 to 11 in both sexes were surveyed. The results was as follows:
① The average DMF person rate of the AREA A showed 46.7% in male, 49.4% in female and 48.1% of both. The content of fluorine in the outer third of the enamel was 420p.p.m. , 95p. p. m. in the middle third and 64p. p. m. in the inner third.
The average mottled index was revealed 0. 28 and the mottled enamel occurrence was 31.1%.
②The average DMF person rate of the AREA B showed 25.6% in male, 27.2% in female and 26.4% of both. The content of fluorine in the outer third of enamel was 518 p.p.m. , 226 p. p. m. in the middle third and 137 p. p. m. in the inner third.
③Average DMF person rate of the AREA B revealed lower by 45. 1% than the AREA A.
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