Fluoride Levels Too High
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In a remarkable
turnabout, federal health officials say many Americans are now getting
too much fluoride because of its presence not just in drinking water but
in toothpaste, mouthwash and other products, and it's causing splotches
on children's teeth and perhaps more serious problems.

The U.S. Department of
Health and Human Services announced plans Friday to lower the
recommended level of fluoride in drinking water for the first time in
nearly 50 years, based on a fresh review of the science.
The announcement is
likely to renew the battle over fluoridation, even though the addition
of fluoride to drinking water is considered one of the greatest public
health successes of the 20th century. The U.S. prevalence of decay in at
least one tooth among teens has declined from about 90 percent to 60
percent.
The government first
began urging municipal water systems to add fluoride in the early 1950s.
Since then, it has been put in toothpaste and mouthwash. It is also in a
lot of bottled water and in soda. Some kids even take fluoride
supplements. Now, young children may be getting too much.
"Like anything else, you
can have too much of a good thing," said Dr. Howard Pollick, a
professor at the University of California, San Francisco's dental school
and spokesman for the American Dental Association.
One reason behind the
change: About 2 out of 5 adolescents have tooth streaking or spottiness
because of too much fluoride, a government study found recently. In
extreme cases, teeth can be pitted by the mineral - though many cases
are so mild only dentists notice it. The problem is generally considered
cosmetic and not a reason for serious concern.
The splotchy tooth
condition, fluorosis, is unexpectedly common in youngsters ages 12
through 15 and appears to have grown more common since the 1980s,
according to the Centers for Disease Control and Prevention.
But there are also growing worries about more serious dangers from fluoride.
The Environmental
Protection Agency released two new reviews of research on fluoride
Friday. One of the studies found that prolonged, high intake of fluoride
can increase the risk of brittle bones, fractures and crippling bone
abnormalities.
Critics of fluoridated
water seized on the proposed change Friday to renew their attacks on it -
a battle that dates back to at least the Cold War 1950s, when it was
denounced by some as a step toward Communism. Many activists nowadays
don't think fluoride is essential, and they praised the government's new
steps.
"Anybody who was
anti-fluoride was considered crazy," said Deborah Catrow, who
successfully fought a ballot proposal in 2005 that would have added
fluoride to drinking water in Springfield, Ohio. "It's amazing that
people have been so convinced that this is an OK thing to do."
Dental and medical groups applauded the announcement.
"This change is necessary because Americans have access to more sources of fluoride than they
did
when water fluoridation was first introduced," Dr. O. Marion Burton,
president of the American Academy of Pediatrics, said in a statement.
The fluoridated water
standard since 1962 has been a range of 0.7 parts per million for warmer
climates where people used to drink more water to 1.2 parts per million
in cooler regions. The new proposal from HHS would set the recommended
level at just 0.7. Meanwhile, the EPA said it is reviewing whether to
lower the maximum allowable level of fluoride in drinking water from the
current 4 parts per million.
"EPA's new analysis will
help us make sure that people benefit from tooth decay prevention while
at the same time avoiding the unwanted health effects from too much
fluoride," said Peter Silva, an EPA assistant administrator.
Fluoride is a mineral
that exists in water and soil. About 70 years ago, scientists discovered
that people whose supplies naturally had more fluoride also had fewer
cavities.
In 1945, Grand Rapids,
Mich., became the world's first city to add fluoride to its drinking
water. Six years later a study found a dramatic decline in tooth decay
among children there, and the surgeon general endorsed water
fluoridation.
And in 1955, Procter & Gamble Co. marketed the first fluoride toothpaste, Crest, with the slogan "Look, Mom, no cavities!"
But that same year, The
New York Times called fluoridation of public water one of the country's
"fiercest controversies." The story said some opponents called the
campaign for fluoridation "the work of Communists who want to soften the
brains of the American people."
The battles continue for a variety of reasons today.
In New York, the village
of Cobleskill outside Albany stopped adding fluoride to its drinking
water in 2007 after the longtime water superintendent became convinced
the additive was contributing to his knee problems. Two years later, the
village reversed the move after dentists and doctors complained.
According to a recent CDC report, nea
rly
23 percent of children ages 12 to 15 had fluorosis in a study done in
1986-87. That rose to 41 percent in a study that covered 1999 through
2004.
"The report of
discoloration has been going up over the years," said Dr. Robert
Barsley, a professor at the LSU Health Sciences Center School of
Dentistry. "It is not the water that's causing this by any means. It's
the extra fluoride products - toothpaste, mouthwash - that people are
using. And people want nice white teeth so they brush three times a
day."
Susan Jeansonne, oral
health program manager for Louisiana Department of Health and Hospitals,
said one reason for the problem is children swallowing fluoride
toothpaste or eating it.
Toothpaste labels have
long recommended that parents supervise children under 6 when they are
brushing their teeth; give them only a pea-size amount; and make sure
they spit it out. Toddlers under 2 shouldn't use toothpaste with
fluoride.
In 2006, the National
Academy of Sciences released a report recommending that the EPA lower
its maximum allowable level of fluoride in drinking water. The report
warned severe fluorosis could occur at 2 parts per million. Also, a
majority of the report's authors said a lifetime of drinking water with
fluoride at 4 parts per million or higher could raise the risk of broken
bones.
In addition, in 2005,
the heads of 11 EPA unions, including ones representing the agency's
scientists, pleaded with the EPA to reduce the permissible level of
fluoride in water to zero, citing research suggesting it can cause
cancer.
In Europe, fluoride is
rarely added to water supplies. In Britain, only about 10 percent of the
population has fluoridated water. It has been a controversial issue
there, with critics arguing people shouldn't be forced to have "medical
treatment" forced on them.