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Sunday, September 17, 2000

Community Dentistry MCQ Answer 13

Sunday, September 17, 2000

The Correct Answer is A. 0.5 to 0.8 mg/litre

Optimum concentration of fluorine in drinking water is 0.5-0.8 ppm (mg/lit.) Deficiency of fluorine leads to dental caries while excess of fluorine causes dental and skeletal fluorosis. At a concentration of 1.5 – 3 ppm, occurs dental flurosis.


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