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| fluoridation The addition of the fluorine ion to municipal water supplies in a final concentration of 0.8-1.6 ppm (parts per million) to help prevent dental caries in children, addition of fluor(ide, ions) to (drinking) water | |||
| fluoridation | |||
| fluorination | |||
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fluoración : 10 phrases in 4 subjects |
| Agriculture | 2 |
| Chemistry | 2 |
| Hygiene | 1 |
| Natural sciences | 5 |
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