| http://www.w3.org/ns/prov#value | - U.S. Pat. No. 6,391,286 discloses fluoride releasing materials for use in dental compositions, having the formula M(G)g(F)n or M(G)g(ZFm)n, where M is an element capable of forming a cationic species and having a valence of 2 or more; G is an organic chelating moiety capable of complexing with the element M; Z is hydrogen, boron, nitrogen, phosphorus, sulfur, antimony, or arsenic; F is fluoride; a
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