Fluoride content of domestic waters and mortality due to ischemic heart disease

The benefits attributed to the ingestion of water-borne fluorides reportedly extend beyond a reduction in the incidence and prevalence of dental caries. Among those claimed is that fluorides may prevent atherosclerosis. In this study, a retrospective analysis of mortality data for 1970 in 15 Texas cities with different levels of natural fluorides in their water supplies revealed no significant differences in the number of deaths caused by ischemic heart disease ( a measure of terminal atherosclerosis). Conversely, the presence of "excessive" flourides did not increase the number of deaths related to atherosclerosis.