FOX ANCHOR 1: Fluoride in water is supposed to fight tooth decay
but could it also cause cancer? It's a controversial question.
FOX ANCHOR 2: Now Harvard University is actually caught up in the
debate with serious allegations that an ivy league professor may
be covering up the truth. Fox Undercover's Mike Beaudet is investigating
the possible link between fluoride and cancer.
REPORTER: Questions about the safety of fluoride in drinking water
are not new, but now the debate has shifted to Harvard University
where a professor and his doctoral student are at odds over research
- research that could show a link between fluoride in drinking water
and bone cancer in boys. The professor doesn't think there's a connection
but his opinion is under scrutiny since he's also a paid consultant
for the toothpaste industry.
REPORTER: Dr. Chester Douglass, a Harvard University big shot
- he's chairman of the department of Oral Health Policy and Epidemiology
at Harvard School of Dental Medicine and he's at the center of a
fluoride debate: the question of whether fluoride in drinking water
can cause cancer. Specifically, osteosarcoma in boys.
[Scene of Douglass walking to his car with envelope in his hand.]
REPORTER: Hi Dr. Douglass, Mike Beaudet with Fox 25. We wanted
to talk to you about the fluoride controversy.
DOUGLASS: I just was talking to the lawyers about the Freedom of
Information, so we're going to give all our studies to them.
REPORTER: Dr. Douglass spoke publicly about the controversy for
the first time to Fox Undercover. Is there a cover-up here?
DOUGLASS: This report [showing envelope] from Harvard Medical School
will answer that question.
REPORTER: The dispute erupted last year when the Washington-based
Environmental Working Group raised serious allegations, accusing
Dr. Douglass of possibly covering up the link between fluoridated
water and cancer.
KEN COOK: The question is very simple. Did he represent the research
correctly or did he not.
REPORTER: Ken Cook is Environmental Working Group's president.
He points to a thesis done by one of Dr. Douglass' own students.
Dr. Elise Bassin found " ...for males less than 20 years old,
fluoride level in drinking water during growth is associated with
an increased risk of osteosarcoma..." But according to Cook,
Dr. Douglass dismissed any link when he presented this report to
the National Institutes of Environmental Health Sciences.
COOK: Dr. Bassin's study found some very compelling evidence that
there's a risk of bone cancer from fluoridation in water. And the
presentation of her research suggested the opposite - that there
was no evidence.
REPORTER: The Environmental Working Group has raised concerns about
Dr. Douglass's close ties to toothpaste giant Colgate, pointing
to his job as Editor-in-Chief of the Colgate Oral Care Report. Fox
Undercover has learned Dr. Douglass has also worked as a consultant
for Colgate for the last ten years. The company has paid him tens
of thousands of dollars.
REPORTER: Do you suspect that Dr. Douglass is trying to protect
the toothpaste industry.
COOK: Obviously, if he's got a financial interest working at least
in part for a company that is making fluoridated toothpaste, one
would be concerned, one would be aware of that potential conflict
of interest.
REPORTER: Dr. Douglass insists that he's done nothing wrong. "You've
got to admit, working for Colgate, it smells a little fishy."
DOUGLASS: I don't, I don't think so. I looked at, I looked at the
200 articles that we've written for them, only 12, only about 11
or 12 of them were on fluoride.
REPORTER: You wouldn't cover up something because you have a financial
interest in Colgate?
DOUGLASS: No. There was never a chance to cover up anything. This
report will speak directly to the issue of whether there's any evidence
of trying to cover something up.
REPORTER: That report is from Harvard Medical School which is investigating
the controversy. Dr. Douglass says the report is still in draft
form and would not show it to us.
As for Dr. Bassin's thesis which showed a link between fluoridated
water and cancer in boys.
DOUGLASS: She did a good job. She had a good group of people advising
her and it's a nice analysis. There's nothing wrong with that analysis.
The question is, it's a subgroup. Is it true when you look at the
whole study? That's the question.
REPORTER: Not for the Environmental Working Group which says the
subgroup of young men should be looked at closely since they're
more likely to develop this type of cancer.
REPORTER: So why weren't Dr. Bassin's findings included in that
Final Report from Dr. Douglass to the government?
DOUGLASS: They got a final report. The truth is, it wasn't the
final report. I mean, if you want to get your facts correct, that
wasn't the real final report. It was a draft.
REPORTER: Do you think there is a link between fluoride and bone
cancer?
DOUGLASS: In the whole study, my best guess is I don't think we're
going to see an association.
TONY VALLENTINE: It seems like somebody was trying to cover up
or alter the findings or keep it quiet.
REPORTER: Tony Vallentine is watching the controversy closely.
It's personal. His son Seth died 20 years ago after a painful battle
with osteosarcoma.
VALLENTINE: This is a picture of Seth and his younger brother Zachary
just before we found out that he had the bone cancer. He was as
healthy as any normal American kid.
REPORTER: Seth grew up in Dedham, 1 of 137 communities in Massachusetts
that adds fluoride to the water. Vallentine says he wants to know
more about any connection between fluoridated water and cancer.
What do you think about this possible link?
VALLENTINE: When I first heard that I was, I was kind of shocked
because I knew that we used the Dedham water and I knew there was
fluoride in it.
REPORTER: Vallentine says that even the suggestion of a link is
disturbing.
VALLENTINE: I don't think one kid's life is worth having a mouth
full of pearly white teeth.
REPORTER: Dr. Bassin declined to be interviewed, but she's standing
by her work and tells FOX Undercover a paper based on her thesis
will soon be published in the journal Cancer Causes and Control.
Dr. Douglass says his full study on the possible link between fluoridated
water and cancer should come out later this year. A Harvard spokesman
tells us its investigation is ongoing, but added the University
does not believe there is any conflict with Dr. Douglass working
for Colgate. This as the Federal Government begins its own investigation.