<<I do not know the answer to this question, other than there is at least
one toothpaste here in Sweden that has NaFl in it instead, and they make
some health point of that. Taste is actually similar to NaCl.>
Fluoride is acceptable in organic trace mineral form. Anything other than
that is poisonous to your system.
For a wealth of info on fluoride go to:
http://www.trufax.org/indices.html#F
Siobhan