Fluoride is a cumulative poison, residing in your bones mostly. I think it does accumulate in other organs as well, it is not a metal, it is a chemical poison. It is unstable though and binds to calcium in the body.

With reduced intake and over the course of time, logic tells me that you would slowly rid yourself of the accumulation - although logic would also assume that increased intake of calcium would
1. Give the "free" fluoride something to bind to and be moved out of the body rather than lodging in bones and teeth.
2. replace calcium lost in bones and other organs by fluoride ingestion.


I'm no doctor but logically I would assume these things.

Also of note, is that when you look at fluoride supplements given by the dentist they will come with a warning on the label to avoid calcium intake within a period of time after ingesting the fluoride - this is because the fluoride will bind to the additional calcium and become ineffective subsequently passing out of the body. It seems the best preventative or combatant for fluoride ingestion would be a calcium supplement.