Are ‘silver’ dental fillings safe?
Your Environment drills into the controversy
By Francesca Lyman
SPECIAL TO MSNBC
July 11 — Anyone who has ever had a tooth cavity has probably seen a dentist
who drilled it and packed it with a “silver” filling. But how many patients
know what’s in that silver? And whether it could have consequences for your
health?
]
PAINED FOR years by fatigue, aches, severe allergies and other chronic
ills, Lydia Bronte never suspected that the cause of her problems might be
something in her teeth.
It wasn’t until she sought the help of holistic physician Dr. Warren
Levin that she got relief. Levin diagnosed Bronte with mercury poisoning and
pointed to her dental amalgams as a probable source.
After realizing she had 17 dental amalgams in her mouth, Bronte was doubly
shocked to discover that these “silver” fillings were not made chiefly of
silver but of an alloy whose principal ingredient is mercury, a metal that can
cause neurological damage at high levels.
“I was very conservative at the time and found this diagnosis hard to
believe,” she says. “Nevertheless, based on the high mercury reading in
[urine and blood] tests, I decided to have the amalgams out.”
This, and further treatments to remove the metal from her body, she
says, made a big difference. Today, though not feeling 100 percent, she says
her condition has vastly improved.
Could silver dental fillings be causing, or contributing to, health
problems? Holistic health advocates, environmentalists and a growing cadre of
“mercury-free” dentists fear amalgams emit dangerous levels of mercury,
stirring up a health controversy that goes back 150 years.
Scientists agree that when absorbed in high enough doses, mercury, in
all its chemical forms, can damage the brain, nervous system, kidneys and other
organs, especially in infants and children. But they differ on not only how
much mercury must be absorbed to cause adverse health effects, but also just
how much of the amalgam’s mercury is absorbed by the human body to begin
with.
Dental associations pooh-pooh alleged dangers. The ADA considers it “a
safe, affordable and durable material” that has been used for “more than
150 years and during that time has established an extensively reviewed record
of safety and effectiveness.”
ADA quotes the U.S. Public Health Service’s 1993 report stating that
amalgam has no health consequences other than for a small percentage of people
who might be allergic to the metals.
Others, however, like Boyd Haley, a chemist at the University of
Kentucky, argue that it is harmful to more than just sensitive populations.
Most people with amalgam fillings get an unsafe dose of the heavy metal because
mercury vapor leaks continually from the fillings, says Haley, who recently
testified before Congress on mercury exposure in children.
Consumer groups argue, meanwhile, that dental patients ought to be told
about what’s going into their mouths.
<snip, read for yourself>
Printable version
In June, a coalition of citizens’ health and environmental groups filed
suit against the American Dental Association for allegedly deceiving consumers
into thinking amalgam fillings are made of silver, when in fact the major
component (about 50 percent, according to the suit) is mercury. They also claim
that the ADA has failed to disclose information regarding the significant risk
of harm associated with the fillings in order to promote the continued use of
amalgams, a product in which it has a financial stake as a paid endorser.
“If mercury is so safe, why do they try to hide it?” says Charlie
Brown, one of the lawyers representing Consumers for Dental Choice (CDC), a
plaintiff in the suit. Brown notes that CDC has already succeeded in winning a
state ruling that requires the California state dental board to advise
participating dentists to tell their patients about the mercury content of
amalgam fillings as well as discuss with them any sensitivities and the
potential for adverse reactions, including suspected links to birth defects.
Although mercury has been known to be poisonous since ancient times,
dentistry associations claim that the mercury is tightly bound with other
metals, rendering it safe. Silver fillings usually contain a mix of silver, tin
and copper as well as zinc and other metals, according to the Journal of the
American Dental Association.
Mercury is essential to make the amalgam harden and adhere, says ADA
spokesman J. Rodney Mackert, professor of dentistry at the Medical College of
Georgia and an expert in materials science.
TRACKING MERCURY’S VAPORS
It wasn’t commonly known that amalgam released mercury vapor until
recently, although the issue was raised more than a century ago. In 1985, Fritz
Lorscheider, a fetal physiologist, and Canadian dentist Murray Vimy showed that
mercury in amalgam continuously vaporizes; measuring mercury in the mouths of
46 people, they also found that the amount of vapor released from fillings rose
when the subjects chewed gum or brushed their teeth. In 1990, the same
scientists reported that studies on sheep using radioactively tagged mercury
revealed that the highly volatile and unpredictable element travels to the
gastrointestinal tract, kidney, liver and brain.
“Whether those [latter] studies are applicable to humans is a matter
of serious importance to public health,” says Dr. Norman Braveman, a research
administrator at the National Institute of Dental and Craniofacial Research
(NIDCR), which has two studies underway on the subject. At issue, he says, is
what dose of mercury a typical patient gets in the dentist’s office, how much
he is exposed to daily and potential health effects that might arise from this
dose. And there isn’t much agreement on any of those questions.
“There’s no question that mercury is not healthy for us,” says
Vasken Aposhian, a professor of cellular and molecular biology at the
University of Arizona who has studied how mercury acts on the body. How many
amalgams you have makes a big difference in terms of how much mercury your
body’s absorbing, he maintains.
“Some people are hyper-sensitive to metals and can get very sick”
from amounts that others can safely handle, he says. “Most are at risk from
multiple exposures from fish, food and other sources.”
At a Congressional hearing on the use of mercury in medicine last year,
Aposhian told legislators that Americans’ greatest exposure to mercury is
from fillings - a serious threat, he says, because it can cross the placenta
and harm the developing nervous system of the fetus.
ADA, however, maintains that the amount of mercury that vaporizes from
the amalgam is trivial, and less significant than exposures in food, water and
air. “Yes,” acknowledges ADA’s Mackert, “mercury is a poison,” and
amalgams vaporize, “something only recently discovered.” But, he argues,
“there is no convincing evidence that the small amount of mercury vapor from
amalgams has any effect on humans.”
Further, says Mackert, repeating the mantra of the ADA, “there have
been no studies conclusively linking mercury from dental amalgams with any
diseases.”
But concerns about possible effects “can’t be dismissed,” as the
U.S. Public Health Service noted. Studies show that people with more dental
amalgam fillings have higher levels of mercury in their bodies. And researchers
at the University of Calgary School of Medicine showed that mercury could be
found in the blood and tissues of pregnant mothers and their fetuses within a
few days after mercury fillings were placed.
Mercury in dental fillings has been linked to other adverse health
effects. Anne Summers, a microbiologist at the University of Georgia, for
example, found that mercury from fillings can inhibit the effectiveness of
antibiotics. Scientists at the Battelle Centers for Public Health Research and
Evaluation in Seattle linked exposure to mercury vapor from dental amalgam
fillings to central nervous system toxicity among dental personnel.
The Battelle team also found “convincing new evidence of adverse
behavioral effects associated with mercury exposures from amalgam fillings
within the range of that received by the general population.” And researchers
at the Colorado State University, Department of Physiology, in Fort Collins,
Colo. have linked dental amalgam exposure to mental illness.
Haley and other scientists, including Vimy and Lorscheider, found in
experiments on rat brains that chronic inhalation of low-level mercury — at
levels that simulate exposure to amalagam fillings — can inhibit brain
chemistry, producing lesions similar to those in Alzheimer’s diseased brains.
Mercury inhibits the efficiency of tubulin, a protein vital to brain cells,
they explain.
‘SAFE’ FOR HUMAN USE
Despite such studies, though, the National Institutes of Health, the
U.S. Public Health Service, and the World Health Organization have all
concluded that amalgams are safe enough to use. There is “no solid evidence
of any harm for millions of Americans who have these fillings,” wrote the
U.S. Public Health Service, and “no persuasive reason to believe that
avoiding amalgams or having them removed will have a beneficial impact on
health.”
By contrast, Canada recently restricted the number of amalgams that
could be placed in children and pregnant women, following similar laws passed
in Sweden, Germany, the United Kingdom and other countries. But having produced
its new guidelines, the U.K. government then qualified that it had no evidence
that there was a risk from amalgam, complicating the issue even further.
While the battle for reliable science rages, many dentists are switching
away from mercury. A 1995 survey of dentists found 8.7 percent wanting to ban
amalgam and 12.3 percent uncertain about its safety, according to a report
published in the March issue of the Journal of the American Dental Association.
Dr. Anthony McLaughlin, a Redmond, Wash., dentist says he isn’t
necessarily in the anti-mercury camp but has eliminated amalgams from his
practice for his own safety and that of his staff; he also removed all the
mercury from his own teeth, and that of his wife and his staff.
Healthy Issues
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Discussion Board
Remembering how he had to dispose of his scrap amalgam as hazardous
waste, he says, “It’s OK to place these in people’s mouths yet it’s
considered hazardous when you take it out. Go figure that one out.”
LOOKING TO THE FUTURE
Given amalgam’s long track record, however, the government is hesitant
to ban it without greater evidence of harm to human health.
“If we ban this material,” NIDCR’s Braveman, “what are our
alternatives, and will they do the job as well?”
For now, he says, two government-funded studies are tracking 1,000
children — half with mercury amalgams, half with alternative materials —
for such traits as behavior, intelligence, antibiotic resistance, immune
function and memory. The results, he says, will be available in about four
years.
In the meantime, if you’re concerned that you have a great many
mercury fillings, Bronte suggests checking yourself for symptoms of mercury
toxicity and having your fillings replaced with non-toxic materials.
“If your regular dentist really isn’t familiar with these materials,
you are better off finding a dentist who is familiar with them,” advises
Bronte, who went on to write “The Mercury in Your Mouth” after her health
improved.
As more patients find out what’s in mercury fillings, adds advocate
Brown, “more dentists will make it their business to know about the
alternatives.”
Write a letter to the Editor
I DID!
Jan
> [snip]
> For now, he says, two government-funded studies are tracking 1,000
> children - half with mercury amalgams, half with alternative materials -
> for such traits as behavior, intelligence, antibiotic resistance, immune
> function and memory. The results, he says, will be available in about four
> years.
What a crock ! You mean all these years everyone's been
screaming that they're safe, and this type of study hasn't
been done ? (I guess I was naive in thinking they at least
did this type of simple study)
What a joke ! The dentists lose more credibility each time
something like this comes up.
Bill
Looks like this could be on the Today show a little
quicker than I thought ! Check your local listings.
Bill
Just what is it you're aiming for? Banning amalgam? Hurting dentists?
Advancing "alternative therapies"? Just venting bile?
I understand Jan. For the life of me, I don't know what you're up to. I am
curious, though.
Steve
Not necessarily. If we could measure people's
susceptibility, that would be ideal. Then,
for the lower income brackets, the benefits
MAY outweigh the risks.
> Hurting dentists?
I don't know. Part of me wants that, but then I say:
my energy is best devoted to healing myself and
helping the portion of people who might be getting
damaged by amalgams.
> Advancing "alternative therapies"?
Where appropriate, yes.
> Just venting bile?
To a certain extent, yes. Please put yourself in my shoes.
You don't understand the hell that I have gone through.
Jan has probably been through the same thing.
I was an apathetic person most of my life. Now I understand
what drives activists.
> I understand Jan. For the life of me, I don't know what you're up to.
I am
> curious, though.
Nothing against you. Who knows, I work in computers, and
some day, something I do may be thought of as harmful.
I will at least understand those who think they are being
harmed, because I have been there.
Bill
Meaning, it might be better for them to do amalgams
than composites.
Bill
AMEN! Being there and doing that and asking God to let you die, does make a BIG
difference!
I hope and PRAY everyday that NO one NO where ever suffer as I did and take
soooooooooooooo long to find the problem.
Jan
Yes the news is getting out. In another 50? years everyone will look back and
wonder how ANYONE ever could believe that mercury is dangerous
EVERYWHERE,,,,,,,,,,except in the mouth
I am 62 yeas old, I don't have time to wait!
Thank God and alt. medicine I finally found my problem!
Jan
Yes ! It will be looked on like lead based paint
in houses. Just like we think: "how could they
do that ?", people in the future will say the same
thing about us. They will view us as primitive,
just like we view society 50 to 100 years ago.
History repeats itself, and always will
Bill
--
+=_-+=_-+=_-+=_-+=_-+=_-+=_-+=_-
Stephen Mancuso, D.D.S.
Troy, Michigan USA
drs...@mancusodds.com
sma...@home.msen.com
~~~~~~~~~~~~~~~~~~~
"Steven Bornfeld" <mari...@hotmail.com> wrote in message
news:3B4E504E...@hotmail.com...
Not selling a thing. Just trying to help people.
Bill
[snip]
>Meaning, it might be better for them to do amalgams
>than composites.
>
It also means dentists having to go back to school to learn to handle new
materials. Many of the pro-amalgamists in here seem very reluctant at picking
up new ideas and research.
--
Alex Bach Andersen, freelance conductor UIN: 8285066
NodeSats/MusicTypesetting - Acorn RISC PC 600 - StrongARMed
Copenhagen,Denmark http://isa.dknet.dk/~alexbach/
.... Sometimes you just have to say 'What the heck'
Just what new material(s) are you talking about?
Steve
Alex Bach Andersen wrote:
--
Mark & Steven Bornfeld DDS
Brooklyn, NY
718-258-5001
http://www.dentaltwins.com
>Dr. Andersen--
>
Please don't Doctor me. I can't take doctor degrees as long as I have traces
of your magnificent filling material in my brain. I simply can't concetrate.
> Just what new material(s) are you talking about?
>
Stuff like the:
http://www.heraeus-kulzer.com/e_tmpl_dental_1.phtml?pid=/en/dental/filling/fuellungsmat/index&sid=9c9847a1c151933c4b0c09d5d4244186
I'm getting for replacement myself.
[snip please learn to quote]
--
Alex Bach Andersen, freelance conductor UIN: 8285066
NodeSats/MusicTypesetting - Acorn RISC PC 600 - StrongARMed
Copenhagen,Denmark http://isa.dknet.dk/~alexbach/
.... Life shouldn't be an endless repetition of stale successes.
I am 49 years old, the last five years have been a nightmare and all
due to the Mercury in my Amalgam fillings. I became ill within hours
of having 6 fillings (I already had a number of Amalgam fillings) but
those six fillings seemed to overload my body with the Mercury already
in it. I was paralysed with pain and had numerous other symptoms
suddenly appear - my mouth filling with excess saliva which tasted
"metallic", swollen tongue and gums, swollen joints, red itchy weals
all over my body, ringing in my ears...the list goes on and on...it
took me 18 months to find out what was causing the symptoms although I
had a good idea it was something to do with my teeth, and that was
only because I read an article about someone who had suffered in the
same way. An Allergy Patch Test proved that the Mercury among other
metals in my Amalgam fillings WAS causing me to be ill. My body could
not function properly as it was being poisoned mainly from the Mercury
leaking from my fillings.
There are thousands and thousands of people who are ill because of
Amalgam fillings but I know that it does not affect everyone. Amalgam
should be banned because, even if people do not get any symptoms,
Mercury IS highly toxic, it should never be put into our mouths. If
it means that dentists have to go back to school and relearn their
trade then so be it..we need to be safe when we visit a dentist,
having Mercury put into our mouths is NOT safe. If Amalgam was safe,
why does the N.H.S. warn dentists NOT to fill pregnant women's teeth
or very small children's teeth with it?
I would hate for anyone to go through what I have been though. It
could have been prevented if only Amalgam had been banned.
Lyn (in London)
YES YES YES Lyn!
Hopefully before long people will wise up as we are hearing more and more of
these terrible experiences.
Be prepared to be trashed here. Let it roll off, maybe we can help others and
this needless suffering can be stopped!!
Jan
REPLY:
To answer Jan's question, YES *silver* dental fillings are safe but
they are b-a-a-a-d for the environment. Thanks for asking by the way.
Cheers,
Joel M. Eichen, D.D.S.
--
Posted from [38.26.248.76] by way of oe29.pav1.hotmail.com [64.4.30.86]
via Mailgate.ORG Server - http://www.Mailgate.ORG
What about the Wright Brothers and Dr. Semmelweis? I am missing them.
--
Posted from [38.26.248.76] by way of oe25.pav1.hotmail.com [64.4.30.82]
Reference please. Double blinded in controlled setting and peer reviewed.
Jan
I would never put traces of my filling material in your brain.
BTW, the class of "new material" you cite has been in widespread use about 40 years. I know of no dentist who doesn't use these
restoratives every day. Any dentist who would have to go "back to school" to learn how to use them would have to be out of school at
least that length of time.
FYI, at least in the United States, most dentists are required to take a minimum quantity of continuing education to maintain
their licenses. I belong to the Academy of General Dentistry, which requires almost twice the number of hours required for
maintaining licensure in New York State.
Whatever your view of dentists, and whatever their other faults, most I know are technophiles and love gadgets and new materials.
Often, that's one of the things that drew us to dentistry in the first place.
Steve
>Subject: Re: Are *Silver* dental fillings safe?
REPLY:
Yes they are, Jan. Thanks for asking.
Joel M. Eichen, D.D.S.
--
Posted from [38.26.248.227] by way of oe52.pav1.hotmail.com [64.4.30.41]
>Dear Alex--
>
> I would never put traces of my filling material in your brain.
I trust you on that one, but actually having felt the blood-brain barrier
being penetrated during a descent to Glasgow Airport back in 1986 it seems
your collegue who put in a large number of amalgams back in 1977 succeded.
> BTW, the class of "new material" you cite has been in widespread use about 40 years. I know of no dentist who doesn't use these
>restoratives every day. Any dentist who would have to go "back to school" to learn how to use them would have to be out of school at
>least that length of time.
I'm glad to hear that. My sources are only what I hear from DTF (the danish
equivallent of ADA), btw it seems we're going to run short of dentists due to
the fact that too few was taken in at university 10 years ago.
> FYI, at least in the United States, most dentists are required to take a minimum quantity of continuing education to maintain
>their licenses. I belong to the Academy of General Dentistry, which requires almost twice the number of hours required for
>maintaining licensure in New York State.
> Whatever your view of dentists, and whatever their other faults, most I know are technophiles and love gadgets and new materials.
>Often, that's one of the things that drew us to dentistry in the first place.
>
I respect dentists, but feel saddened by the huge amount of ignorance I find
many places. One son of a mercury-free dentist had to change his surname
while studying at Dental School here, just to pass his exams.
--
Alex Bach Andersen, freelance conductor UIN: 8285066
NodeSats/MusicTypesetting - Acorn RISC PC 600 - StrongARMed
Copenhagen,Denmark http://isa.dknet.dk/~alexbach/
.... It's not in the manual !!!!!
Do you expect us to believe that the Danish nations are that far behind in
dental training??? I don't believe it. I have sat across the table from
Hans Lenros and his education is NOT lacking anything. Composite resin in
NOTHING new. You can make an argument that some dentists seem to not know
how to place it since the result does not look as good as we expect it.
These dentists might need to re-learn their technique, but not because they
were not taught it. Most likely because they don't enjoy it and don't put
the effort forward. But,,,,,,,,, that can be with any material or procedure
which is done.
Can you prove the remark about: "One son of a mercury-free dentist had to
change his surname while studying at Dental School here, just to pass his
exams" ??? Was the father simply "mercury-free" or was the father a loud
activist who offended many by marketing his work beyond the scope of
dentistry?
what in the world are you referring to by saying: ", but actually having
felt the blood-brain barrier being penetrated during a descent to Glasgow
Airport back in 1986 it seems your colleague who put in a large number of
amalgams back in 1977 succeeded" ?????
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Stephen Mancuso, D.D.S.
drs...@mancusodds.com
Troy, Michigan USA
+_+_+_+_+_+_+_+_+_+_+_+_+_+_+_+
This posting is intended for informational or conversational purposes only.
Always seek the opinion of a licensed dental professional before acting on
the advice or opinion expressed here. Only a dentist who has examined you
in person can diagnose your problems and make decisions which will effect
your health.
......................
"Alex Bach Andersen" <ab...@ccl4.org> wrote in message
news:875cfd9a4a%alex...@oldfred.alexbach...
>Alex,
>
>Do you expect us to believe that the Danish nations are that far behind in
>dental training??? I don't believe it. I have sat across the table from
>Hans Lenros and his education is NOT lacking anything. Composite resin in
>NOTHING new. You can make an argument that some dentists seem to not know
>how to place it since the result does not look as good as we expect it.
>These dentists might need to re-learn their technique, but not because they
>were not taught it. Most likely because they don't enjoy it and don't put
>the effort forward. But,,,,,,,,, that can be with any material or procedure
>which is done.
>
Well, the way the DTF communicates resembles mostly the way former eastern
european governments communicated until recently. And I agree that amalgam or
gold can be the only solution in special circumstances, but I leave that to
well educated and well informed dentists to decide.
>Can you prove the remark about: "One son of a mercury-free dentist had to
>change his surname while studying at Dental School here, just to pass his
>exams" ??? Was the father simply "mercury-free" or was the father a loud
>activist who offended many by marketing his work beyond the scope of
>dentistry?
>
Well you could go to http://www.lichtenberg.dk/ and ask.
He's one of the leading researchers here. (And father of the son in
question).
>what in the world are you referring to by saying: ", but actually having
>felt the blood-brain barrier being penetrated during a descent to Glasgow
>Airport back in 1986 it seems your colleague who put in a large number of
>amalgams back in 1977 succeeded" ?????
It's quite impossible to describe the sensation I felt during that descent.
My first thought was it was the usual 'earplugs' (is that the correct word)
due to the pressure increasing as one usually senses, but this was quite
different as something pressed up and through the cranium (or what ever that
part of the inner head is called). What I mean if that she (your collegue)
didn't put in those amalgams back in 1977 I probably wouldn't have had that
experience, and my brain would probably work as it is supposed to work and I
wouldn't be writing all this stuff at all.
>
--
Alex Bach Andersen, freelance conductor UIN: 8285066
NodeSats/MusicTypesetting - Acorn RISC PC 600 - StrongARMed
Copenhagen,Denmark http://isa.dknet.dk/~alexbach/
.... Since you're going to die anyway, can we use you as a shield?
I hope there is some loss of communication due to language differences.
Your comments about the blood-brain barrier leave me wondering about you.
Do you really find people take comments like that seriously?
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Stephen Mancuso, D.D.S.
drs...@mancusodds.com
Troy, Michigan USA
+_+_+_+_+_+_+_+_+_+_+_+_+_+_+_+
This posting is intended for informational or conversational purposes only.
Always seek the opinion of a licensed dental professional before acting on
the advice or opinion expressed here. Only a dentist who has examined you
in person can diagnose your problems and make decisions which will effect
your health.
......................
"Alex Bach Andersen" <ab...@ccl4.org> wrote in message
news:ad49c09b4a%alex...@oldfred.alexbach...
"Dr. Steve" wrote:
> Alex,
>
> Do you expect us to believe that the Danish nations are that far behind in
> dental training??? I don't believe it. I have sat across the table from
> Hans Lenros and his education is NOT lacking anything.
Actually, Hans is a Swede. No, we don't need to build up his ego.
> Composite resin in
> NOTHING new. You can make an argument that some dentists seem to not know
> how to place it since the result does not look as good as we expect it.
> These dentists might need to re-learn their technique, but not because they
> were not taught it. Most likely because they don't enjoy it and don't put
> the effort forward. But,,,,,,,,, that can be with any material or procedure
> which is done.
>
> Can you prove the remark about: "One son of a mercury-free dentist had to
> change his surname while studying at Dental School here, just to pass his
> exams" ??? Was the father simply "mercury-free" or was the father a loud
> activist who offended many by marketing his work beyond the scope of
> dentistry?
We had a woman in our class whose father was one of the most hated
professors at NYUCD. She should have changed her name!
>
>
> what in the world are you referring to by saying: ", but actually having
> felt the blood-brain barrier being penetrated during a descent to Glasgow
> Airport back in 1986
I'm not sure I want to know. That's gotta hurt!
Steve
--
Mark & Steven Bornfeld DDS