Note from FAN: The authors of this study have issued a "corrigendum" to correct several errors in the above analysis. The corrigendum was published in the April 2014 issue of Environmental Science & Policy (volume 38, pages 282-284). The text of the corrigendum is as follows:
In this paper, the first author erroneously used life time exposure data to calculate number of cancer cases while using annual data on cost of fluoridation chemicals to calculate net social costs. Corrections are made
V. Conclusions and Unresolved Issues
There is considerable debate over the composition and even the existence of some homo- and heteroleptic aquo-, fluoro-, and hydroxo complexes of silicon-(IV), which makes it impossible to predict what species might be found in real potable water supplies that are fluoridated or those that naturally contain fluoride and silicates as background ions. The only agreement seems to be that hexafluorosilicate does not undergo cumulative, consecutive displacements o
