New controversy regarding bisphenol-A

Bisphenol-A, the toxic chemical which has been implicated as a carcinogen, and which is used to create hard plastic water and baby bottles has turned up somewhere else:  in the sealant used by dentists to prevent tooth decay.  Canada has banned use of the chemical in certain circumstances, and the study group created by the federal government  (the National Toxicology Program of the DHHS) is concerned about it leaching into baby formula and other food supplies, however the FDA considers it safe.  The CDC found detectable levels of BPA in 93 percent of the urine samples it collected from more than 2500 adults and children age 6 or older.  Dentists claim sealants using BPA are safe.