On April 13, 2007, the US Court Of Appeals ruled that it has no jurisdiction over the FDA to force the agency to tighten its rules on dental fillings containing mercury. The ruling was unanimous.
Opposition groups who wanted the court to impose stricter regulation, insist that mercury vapors from dental fillings can harm patients and others who handle the fillings. But the FDA claimed that mercury fillings pose no threat to patients. Only to those patients who have an allergic reaction to mercury, the associated Press reported.