The action of adding fluoride to substances like water or dental products.
Present participle of fluoridize, following standard English -ing formation. The term has been in use since fluoridation programs became common in the 1940s-1950s.
The process of fluoridizing entire city water systems involves precise chemical dosing—too little and it's ineffective, too much and it can cause fluorosis (a cosmetic effect with white spots on teeth), so water treatment plants use careful monitoring.
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