|
Index
|
S1 |
S2 |
S3 |
S4 |
S5 |
S6 |
S7
A SCIENTIFIC CRITIQUE OF THE
FLUORIDATION FORUM REPORT, IRELAND 2002.
Section 2.
Conclusions and Recommendations.
In our view, the
Fluoridation Forum had several tasks. It first had
to demonstrate that fluoridation was effective at
reducing tooth decay in Ireland. It then had to
address all the concerns that have been expressed
about fluoride's harmful effects at the daily doses
experienced in optimally fluoridated communities as
well as the lifetime cumulative dose. If, after
addressing these two tasks, there was uncertainty in
either or both of the outcomes, then it had to offer
some kind of balancing analysis which would
demonstrate that any benefit found outweighed any
possible health risks, with a sufficiency to
overcome concerns about margin of safety
considerations for a whole population.
Particular consideration
should have been given to individuals who are likely
to exhibit a wide range in sensitivity to any toxic
substance, and who are also likely to experience a
considerable range of exposure to fluoride from
water and other sources, a sizeable number of whom
are unable to avoid fluoridated water.
Some would argue, that no
matter how strong the benefit and how weak the
evidence of harm, the individual should still have
the right to exercise "informed consent" in this
matter and the Irish (or any) government should not
be allowed to override this important human right,
by enforcing medication on all. We agree with this
ethical position. However, our main concern with
this report is that the Forum has failed to
demonstrate a significant benefit to teeth and
failed to fully, or even partially, address many of
the health concerns that have been raised.
Even the few concerns
that the Forum authors did address were tackled
inadequately and unscientifically. They ignored many
studies, even ones that were actually presented to
them in person, and those they didn't ignore they
addressed superficially. In particular, they failed
to use a "weight of evidence" approach which, in our
view, is critical in a situation where a whole
population is being exposed to a toxic substance,
and where damage may not be realized until nearly a
full lifetime of exposure. To wait until all the
evidence is in simply means that a whole population
will have received a lifetime of exposure. This is
taking governmental arrogance to a whole new level
of disdain.
In our view adding
fluoride to the drinking water of every man, woman
and child in society is akin to building a dam above
a village. If something goes wrong with the dam it
could flood the village. If those supporting
fluoridation are wrong in their claims of safety
millions of people could be adversely affected. That
is why it is essential that those who review this
policy leave no stone unturned in case there are
flaws in the promoters' arguments. In toxicological
terms that means taking into account every piece of
scientific evidence however remotely relevant. The
Forum should have examined biochemical studies;
animal testing; clinical studies; all the evidence
gleaned from countries which have high natural
levels of fluoride (China, India and countries in
Africa); the fluoride levels in the tissues and
particularly the bones of people living in
fluoridated communities, and epidemiological
studies. These studies should be assessed for any
need for caution. Those in charge, like the Minister
of Health and Children, are appointed to look for
red flags not to avoid them. That's their duty as
public health officials. If they are unwilling to do
their duty then they shouldn't be putting fluoride,
and certainly not untested industrial grade
hexafluorosilicic acid, into the drinking water of
their citizens.
Unfortunately, the Forum
authors, like many government sponsored report
authors before them, have not chosen the careful
approach. Instead of looking under every stone, they
have left whole mountains unscaled. They have missed
out many important studies and lines of enquiry.
Moreover, where red flags have been waved, instead
of proper scrutiny and research, they have simply
looked for other studies to nullify them. Their aim
appears to have been not to study the evidence, but
to find ways to get around it. In short, they are
approaching this task in the same manner the
chemical industry has defended a whole host of toxic
substances in the past (e.g. tetraethyl lead, DDT,
PCBs, dioxins and furans).
Underlining the Forum's
failure to take its charge of protecting the public
seriously, is their failure to address the fact that
the industrial grade chemical (hexafluorosilicic
acid) used to fluoridate Ireland's water has never
been tested in long term toxicological studies. This
is especially inexplicable in light of the fact that
Masters and Coplan have shown (1999, 2000) that
there is an association between the uptake of lead
(from various sources) into children's blood and the
use of these same fluoridating chemicals in the
United States. Moreover, these same authors have
found an association between their use and indices
of violent and anti social behavior, which is
entirely consistent with this greater uptake of
lead.
What is particularly
shocking about the Fluoridation Forum's failure, and
other previous government sponsored reports, is the
relatively simple task of extrapolating from solid
clinical data to predict a serious outcome for the
bones from lifetime exposure to fluoride. If one
simply calculates, as we have done, the cumulative
dose used in clinical studies for the treatment of
patients with osteoporosis, from the administered
daily dose (20-40 mg per day for 1 - 4 years) which
resulted in the unintended increase in hip fracture
rates, it is not difficult to conclude that these
cumulative doses will be exceeded during lifetime
exposure by people living in fluoridated communities
(1.6 to 6.6 mg per day for 70 years or more).
Instead of doing these
kind of calculations on cumulative doses, the
fluoridation forum authors obscured the issue in two
ways: 1) they continued to describe the clinical
experience as "high dose" trials without
acknowledging that the trials only ran for short
(compared to lifetime) periods (1-4 years), and 2)
failed to underline the significance of the fact
that approximately 50% of every daily dose of
fluoride accumulates in the bones. Such an
accumulation cries out for cumulative dose
calculations.
Perhaps, the clearest
evidence that the practice and promotion of
fluoridation has always been a non-scientific
venture, is the fact that no government endorsing
this practice, including the Irish government, has
ever felt fit to call for, or financially support,
the careful monitoring of fluoride levels in the
bones of their citizenry. This, even while they have
poured money into studies of dental caries and
dental fluorosis and even money into studying the
psychology of people who oppose fluoridation. The
fluoridation forum fell into line once again by
failing to call for the obvious.
Because the Fluoridation
Forum has failed to demonstrate either the efficacy
of fluoridation or its safety, or convincingly
demonstrate that this is an issue over which the
government still has the right to overrule the
individual's right to "informed consent" to
medication, it is time for the Irish government to
halt this practice.
Fortunately, there is
plenty of evidence in the dental literature that
where communities have stopped fluoridation in
recent years in Finland, Cuba, former East Germany
and Canada, that tooth decay has not increased, but
actually continued to decrease. Nor does halting
fluoridation deprive anyone of fluoride who is
capable of brushing their teeth, since fluoridated
toothpaste is universally available. We would
further argue that the money saved by the Irish
government in halting this practice would be far
better spent targeting vulnerable individuals and
communities with better education in oral hygiene,
free toothbrushes and toothpaste, better dietary
information and better dental treatment services.
It is time for the Irish
government to have the political courage to admit
that this practice was, is, and always will be
wrong. They will win far more respect taking this
high road, than the low road of dragging science and
common sense through the mud in a report like this.
CONTENTS.
1) The historical, geographical and political
context of the report.
2) Membership of panel.
3) Protecting health or protecting policy?
Evidence of bias.
4) Health concerns and key studies omitted. A
critique of Chapter 11.
4.1 Dental fluorosis.
4.2 The Alarcon-Herrera study.
4.3 Tolerable Daily Intakes (TDIs).
4.4 TDIs without uncertainty factors.
4.5 A huge mistake: a TDI which is enough to
kill.
4.6 Margin of safety.
4.7 Bioaccumulation and the pineal gland.
4.8 Second-hand science: Reviews of reviews.
4.9 Key issues and key studies omitted.
4.10 Fluoride and bone.
4.11 Failure to take into account total dose.
4.12 Failure to use weight of evidence approach.
4.13 Failure to discuss the Precautionary
Principle.
4.14 Failure to address Paul Connett's "50
Reasons".
4.15 The use of hexafluorosilicic acid instead of
sodium fluoride (Chapter 10).
5) Inadequacies of dental analysis.
5.1 Dental decay.
5.2 Dental fluorosis.
5.3 Dental fluorosis and infant feeding
5.4 Estimations of early childhood exposure to
fluoride
5.5 Conclusion of the the forumâs dental
analysis.
Appendix 1. Biographical notes on signatories
Appendix 2. Dr Paul Connett's "50 Reasons to
Oppose Fluoridation".
Appendix 3. Responses to the York Review.
Appendix 4. A chronological listing of animal,
clinical and endemic studies of fluoride and bone,
with quotations.
Appendix 5. A chronological listing of the
epidemiological hip fracture studies.
Appendix 6. References
1) The
historical, geographical and political context of
the report.
Ireland is one of the
very few countries in the world which has water
fluoridation mandated at the national level. This
policy was enacted in 1963. As a consequence Ireland
is one of a mere handful of countries worldwide with
the majority of its citizens drinking water which
has fluoride added. Virtually every country in
Europe has abandoned the practice, some after
lengthy trials.
In the 1990's there were
attempts by the UK government to extend fluoridation
into Northern Ireland beyond two suburbs of Belfast.
This effort led to very widespread opposition across
the political spectrum. The end result was that 25
out of the 26 councils in Northern Ireland rejected
the proposal. The widespread and vocal opposition to
fluoridation in the North raised questions from
jurisdictions in the South. Eleven County Councils
have gone on record as opposing the forced
fluoridation of their local water supplies by
central government.
In recent years citizens,
Irish environmental and public health organizations,
increasing numbers of dentists, and the media have
raised many questions about the practice. These
include:
1) Is it necessary to
have the water fluoridated when fluoridated
toothpaste is universally available?
2) Why is it that countries which do not fluoridate
their water have teeth just as good if not better
than those that do?
3) Why is it that when communities stop fluoridating
their water, tooth decay does not go up but
continues to go down, as it has been in most
industrialized countries since World War II?
4) Why are the fluoridating chemicals used
industrial waste products, and not pharmaceutical
grade?
5) Is the prevalence of a number of health problems
in Ireland -- such as irritable bowel syndrome,
osteoporosis, osteoarthritis, hip fracture, bone
cancer, Alzheimers disease -- related to lifelong
exposure and bio-accumulation of fluoride?
6) Why has the government not systematically studied
a possible relationship among these diseases and
exposure to fluoride?
7) Why does the government feel that they can force
fluoride on its people, even when some of these
questions have not been fully answered?
8) Does any government have the right to override
the citizen's right to "informed consent" to
medication?
Because of these and
other questions being raised, and the very
unsatisfactory answers from the central government,
a number of prominent politicians began to call for
an end to fluoridation.
Eventually, this
accumulating pressure forced a response from Mr.
Micheal Martin, the Minister for Health and
Children, who set up the Fluoridation Forum to
review the policy. Key activists questioned whether
this panel was created in an effort to protect the
health of the Irish people, or to protect government
policy.
2)
Membership of the panel.
We note that of the 20
Forum panel members (listed p 14-15 of report), at
least 10 work for the Irish government (national or
regional), 2 are well known for their promotion of
fluoridation (Professor John Clarkson and Professor
Denis O'Mullane), and none specialize in toxicology.
The fact that there was no one on the panel with
specialist knowledge on toxicology goes a long way
to explain how such an elementary mistake (see
section 4.5) of presenting the tolerable daily
intake for fluoride as 10 mg/kg/day, which is twice
the acutely toxic (even lethal) dose, went
unspotted, not once but twice!
3)
Protecting health or protecting policy? Evidence of
bias.
a) Use
of conclusory statements.
Several times in the
text, it is stated AS FACT that fluoridation reduces
dental decay. Since this was presumably one of the
points the panel was supposedly investigating, it is
inappropriate to repeat this as a statement of fact,
rather than a conclusion reached through an
impartial examination of the evidence.
b)
Chapter 7.
In Chapter 7, the Forum
addresses the status of fluoridation worldwide. One
can only describe their discussion as a "positive
spin" on this matter. Instead of admitting that most
countries in Europe do not fluoridate their water
(e.g. Austria, Belgium, the Czech Republic, Denmark,
Finland, France, Germany, Greece, Italy, Luxemburg,
the Netherlands, Norway, Portugal and Sweden) they
go to pains to inflate the number of countries
around the world that do. Without citing a reference
they tell us that "Approximately 317 million people
in 39 countries benefit from artificially
fluoridated water".
Without a citation it
would be foolhardy to accept this number at face
value. We can only assume it is based upon lists
prepared by the British Fluoridation Society (BFS),
since the BFS is the most commonly cited source for
these statistics. However, it should be noted that
the BFS list includes countries like Switzerland,
New Guinea, and Fiji, which have only one city
fluoridated, and other countries like Cuba and the
Czech Republic which have stopped fluoridation, and
countries like the Philippines where only the US
military bases are fluoridated. In our view, it
would be more appropriate to provide three lists:
(i) Those countries where
the majority of citizens are drinking fluoridated
water (i.e. Australia, Ireland, possibly Israel, New
Zealand, Singapore and the United States). This list
is a mere handful of the fluoridated countries
listed by the BFS.
(ii) Those countries
where 10% or more are drinking fluoridated water (e.g
Canada, and the UK). This list is also very short.
(iii) Cities in otherwise
unfluoridated countries which are fluoridated, e.g
Basel in Switzerland.
Presented this way, it
would become very clear to Irish citizens that they
are in a very distinct minority worldwide and are a
part of the 2% of Europe which is still fluoridated.
Other statements in this
chapter do not stand up to scrutiny, and appear to
be an attempt to minimize other countries outright
rejection of water fluoridation. For example, their
claim that, "The Government in the Netherlands did
not persist with water fluoridation because it was
unable to supply fluoridated and non-fluoridated
water to adjacent towns depending on the decision
reached by communities sharing the same water
supply" is incorrect. It was not technical
limitations that halted fluoridation in Netherlands,
but a Supreme Court ruling on June 22, 1973, which
stated that fluoridation had "no legal basis." When
some politicians tried to amend the law to create a
legal basis for fluoridation, "it became clear that
there was not enough support from Parliament for
this amendment and the proposal was withdrawn."
These are the words of the Netherlands' Office of
Drinking Water, January 26, 2002. (See
letter at
http://www.fluoridationfacts.com/c-netherlands.htm)
Likewise, the Forum's
description of the Swedish battle over fluoridation
is also very misleading. According to the Forum,
"A body established by
the Swedish government advised that water
fluoridation should proceed. A bill was prepared
but not enacted."
Such a description gives
little indication of the vigorous and articulate
nature of the scientific opposition to fluoridation
in Sweden. In fact, it is interesting to note that
the scientist who led the successful opposition in
Sweden was Dr. Arvid Carlsson who won the Nobel
Prize for Medicine in 2000. According to Carlsson's
written testimony to the Swedish Government in 1978,
"Water fluoridation
also goes against leading principles of
pharmacotherapy, which is progressing from a
stereotyped medication of the type of 1 tablet 3
times a day to a much more individualized therapy
as regards both dosage and selection of drugs. The
addition of drugs to the drinking water means
exactly the opposite of an individualized therapy.
Not only in that the dose cannot be adapted to
individual requirements. It is, in addition, based
on a completely irrelevant factor, namely
consumption of drinking water, which varies
greatly between individuals and is, moreover, very
poorly surveyed."
For this and other
reasons, Carlsson stated in his testimony "I am
quite convinced that water fluoridation, in a
not-too-distant future, will be consigned to medical
history."
Index
|
S1 |
S2 |
S3 |
S4 |
S5 |
S6 |
S7 |