GD-4585-78 in part state: "Over the course of five months, the court held periodic hearings, which consisted of extensive expert testimony from as far away as England.
At issue was the most recent time-trend study of Dr. Burk and Dr. Yiamouyiannis, which compared cancer mortality in ten cities which fluoridated their water systems with ten cities which did not fluoridate over a period of twenty-eight years from 1940 to 1968.
The study concluded that there was a significant increase in cancer mortality in the fluoridated cities.
"[citation needed] Judge Flaherty remained convinced that fluoridation is a dangerous practice based on the scientific evidence and moreover that those who belittle opponents of fluoridation do the public a disservice.
He agreed that fluoridation is a legislative and regulatory matter under U.S. laws that govern the practice.