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Mercury in fillings

people have been dying of cancer for hundeds years. For a long time people thought smoking was safe but we now know that its factor in causing cancer. Is there any way that Mercury in fillings could attribute to the cause of caner in the body?
 
dogbite666 said:
I am aware that Mercury itself is carcenogenic...
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dogbite666 said:
people have been dying of cancer for hundeds years. For a long time people thought smoking was safe but we now know that its factor in causing cancer. Is there any way that Mercury in fillings could attribute to the cause of caner in the body?
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Some organic compounds of mercury are classified as possible carcinogens, but I don't think elemental mercury or mercury in amalgam is.
 
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I see. I didn't know that Mercury in amalgam had actualy undergone a chemical reaction in the process of creating it. I thought that it was just elemental Mercury in there rather than Mercury bonded with something else. Case closed.
 
dogbite666 said:
Case closed.
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I wish everyone were as easily convinced. There is and will always be a core of mercury doom-sayers who regard mercury amalgam fillings as the equivalent of giving someone metastatic cancer. The whale.to site harbours a few of these characters. Like with everything else on their site, the articles attesting to the toxicity of mercury amalgams range from the deliberately misconstrued to totally delusional.
 
I wrote a "guest column" in my local newspaper about the safety of mercury amalgam dental fillings. It was in response to an earlier letter to the editor that claimed mercury fillings are responsible for all manner of illness ranging from joint pain to cancer and lupus. After my article, I got several phone calls from woos claiming I was a shill for the AMA/ADA/FDA and wanting to "debate" the issue over the phone. :rolleyes:
 
There are many studies done on Mercury. Using rats and sheep and stuff.

Researchers found mercury from fillings all over the place in the test animals.

In sheep - Vimy, M.J., Y. Takahashi, and F.L. Lorscheider "Maternal-fetal distribution of mercury (203Hg) released from dental amalgam fillings." Am. J. Physiol. 258 (Regulatory Integrative Comp. Physiol. 27): R939-R945 (1990).

In rats - Fredriksson, A., Dencker, L., Archer, T., Danielsson, B.R. "Prenatal Coexposure to Metallic Mercury Vapor and Methyl Mercury Produce Interactive Behavioral Changes in Adult Rats." Neurotoxicol Teratol., 18(2): 129-34, (1996).

But we all know they have some kind of agenda, to try and take our mercury away. Don't ket them get away with it! Fight to keep Mercury in your mouth! Yeah we lost that battle over lead, but we can keep putting mercury in our kids mouths, no matter what those researchers try to say.

:D
 
robinson said:
There are many studies done on Mercury. Using rats and sheep and stuff.

Researchers found mercury from fillings all over the place in the test animals.

In sheep - Vimy, M.J., Y. Takahashi, and F.L. Lorscheider "Maternal-fetal distribution of mercury (203Hg) released from dental amalgam fillings." Am. J. Physiol. 258 (Regulatory Integrative Comp. Physiol. 27): R939-R945 (1990).

In rats - Fredriksson, A., Dencker, L., Archer, T., Danielsson, B.R. "Prenatal Coexposure to Metallic Mercury Vapor and Methyl Mercury Produce Interactive Behavioral Changes in Adult Rats." Neurotoxicol Teratol., 18(2): 129-34, (1996).

But we all know they have some kind of agenda, to try and take our mercury away. Don't ket them get away with it! Fight to keep Mercury in your mouth! Yeah we lost that battle over lead, but we can keep putting mercury in our kids mouths, no matter what those researchers try to say.

:D
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Interesting. The findings tend to emphasize that the embryo is really the one at risk.
 
I just learned today that composite fillings turn orange after death, so people are returning to amalgam because it doesn't turn orange. It does however turn the tooth gray or silver.
 
robinson said:
There are many studies done on Mercury. Using rats and sheep and stuff.

Researchers found mercury from fillings all over the place in the test animals.
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Hi robinson. Always nice to see a fellow scientist and to see proper papers quoted. From your (presumed) sarcastic reply, I take you are opposed to the use of mercury in fillings? I have no stance on the matter (apart from 3 mercury amalgam fillings myself) but I was interested to look at the papers you cited:

In sheep - Vimy, M.J., Y. Takahashi, and F.L. Lorscheider "Maternal-fetal distribution of mercury (203Hg) released from dental amalgam fillings." Am. J. Physiol. 258 (Regulatory Integrative Comp. Physiol. 27): R939-R945 (1990).
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Interesting and appears well done. If I were pregnant, I would think twice about a mercury filling


In rats - Fredriksson, A., Dencker, L., Archer, T., Danielsson, B.R. "Prenatal Coexposure to Metallic Mercury Vapor and Methyl Mercury Produce Interactive Behavioral Changes in Adult Rats." Neurotoxicol Teratol., 18(2): 129-34, (1996).
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From the abstract (freely available on PubMed): Pregnant rats were 1) administered methyl mercury (MeHg) by gavage, 2 mg/kg/day during days 6-9 of gestation, 2) exposed by inhalation to metallic mercury (Hg degrees) vapour (1.8 mg/m3 air for 1.5 h per day) during gestation days 14-19, 3) exposed to both MeHg by gavage and Hg degrees vapour by inhalation (MeHg + Hg degrees), or 4) were given combined vehicle administration for each of the two treatments (control).

So, do you think the experiment detailed here replicated what happens when a mercury amalgam filling is placed in a human? I do not remember (a) having my stomach washed out by methly mercury or (b) inhaling mercury vapour for 90mins while I had my fillings done. Did you?

Why did you feel this result was applicable to the situation we are discussing?

But we all know they have some kind of agenda, to try and take our mercury away. Don't ket them get away with it! Fight to keep Mercury in your mouth! Yeah we lost that battle over lead, but we can keep putting mercury in our kids mouths, no matter what those researchers try to say.

:D
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And so I'll leave you with a citation of my own. From JAMA, in 2006.

Neurobehavioral effects of dental amalgam in children: a randomized clinical trial.

7 years of follow up and no noticible differences between the two groups, except that amalgam fillings last longer!

I will leave you with the conclusions of the study: CONCLUSIONS: In this study, children who received dental restorative treatment with amalgam did not, on average, have statistically significant differences in neurobehavioral assessments or in nerve conduction velocity when compared with children who received resin composite materials without amalgam. These findings, combined with the trend of higher treatment need later among those receiving composite, suggest that amalgam should remain a viable dental restorative option for children.
 
Well hi there Doc!

Among Dentist, the fight over mercury in fillings is long and troublesome. At one time mercury was banned from use, because dentist were concerned over toxicity. I even know Dentist who have had all the mercury removed from their own mouths, as well as their families. What nonsense.

This study -Vimy, M.J., Y. Takahashi, and F.L. Lorscheider "Maternal-fetal distribution of mercury (203Hg) released from dental amalgam fillings." Am. J. Physiol. 258 (Regulatory Integrative Comp. Physiol. 27): R939-R945 (1990).

... used actuall fillings in sheep!

To save interested parties from the linking - ABSTRACT: In humans, the continuous release of Hg vapor from dental amalgam tooth restorations is markedly increased for prolonged periods after chewing. The present study establishes a time-course distribution for amalgam, Hg in body tissues of adult and fetal sheep. Under general anesthesia, five pregnant ewes had twelve occlusal amalgam fillings containing radioactive 203Hg placed in teeth at 112 days gestation. Blood, amniotic fluid, feces, and urine specimens were collected at 1- to 3-day intervals for 16 days. From days 16-140 after amalgam placement (16-41 days for fetal lambs), tissue specimens were analyzed for radioactivity, and total Hg concentrations were calculated. Results demonstrate that Hg from dental amalgam will appear in maternal and fetal blood and amniotic fluid within 2 days after placement of amalgam tooth restorations. Excretion of some of this Hg will also commence within 2 days. All tissues examined displayed Hg accumulation. Highest concentrations of Hg from amalgam in the adult occurred in kidney and liver, whereas in the fetus the highest amalgam Hg concentrations appeared in the liver and pituitary glands. The placenta progressively concentrated Hg as gestation advanced to term, and milk concentration of amalgam Hg postpartum provides a potential source of Hg exposure to the newborn. It is concluded that accumulation of amalgam Hg progresses in maternal and fetal tissues to a steady state with advancing gestation and is maintained.

That sounds like the researchers are saying mercury is coming out of the fillings. What they hell are they smoking?

Then you have blatant agenda pushers, like -
Boyd, N.D., H. Benediktsson, M.J. Vimy, D.E. Hooper, and F.L. Lorscheider, "Mercury From Dental "Silver" Tooth Fillings Impairs Sheep Kidney Function", Am.J. Physiol. 261, Regulatory Integrative Comp. Physiol. 30: R1010-R1014, (1991).

What nerve, to suggest that Dental Mercury Impairs Kidney Function!

My God man, there are more than 100 million mercury fillings put in peoples mouth every year. Can you imagine what would happen if mercury was shown to have harmful effects? The lawsuits, the expense, the horror. No my friends, we must attack any and all results that even hint at harm from mercury fillings.

The alternatives are too horrible to imagine.
 
It's the dose that makes the poison...

How much mercury was absorbed? The abstract doesn't say. But I know that using radioactive tracers allows detection of extremely small amounts. And as Dr Richard noted, the amounts administered in the other paper was many many orders of magnitude larger than could come from amalgam.

// CyCrow
 
robinson said:
My God man, there are more than 100 million mercury fillings put in peoples mouth every year.
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...and still no documented harm attributable to mercury amalgam.

That is one hell of a conspiracy theory. Tell me, who came up with it, the Dental Arm of the Illuminati?

What is the difference between this and the decades-old claim that the automotive and oil industries have been actively suppressing the development of alternative fuels?
 
Silly Green Monkey said:
I just learned today that composite fillings turn orange after death
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That will explain why all the ghostly apparitions I see have orange teeth. I used to think they were the shades of smokers dead from lung cancer come back to haunt me for trying to make them give up. Perhaps they should try haunting their dentists instead.
 
OH NOES! even composites are bad for us. Pull out all our teeth!

Kleinsasser, NH Schmid K, et. al. "Cytotoxic and genotoxic effects of resin monomers in human salivary gland tissue and lymphocytes as assessed by the single cell microgel electrophoresis (Comet) assay" Biomaterials, 27(9) 1762-70 (2006)

Polymers degrade slowly. This is part of the reason why composites only last so long. And the leachates from these degradable products can be toxic/carcinogenic.

So, when you have a lesser of two evils issue, you select the one that requires less intervention.
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BTW, Methyl-Hg is nasty nasty stuff. Tiny amounts you absorb to your skin can kill you. There was a researcher several years back who died becasue of a small drop that landed on her glove, went through that and touched her skin. (can't remember her name).

But that isn't what dental fillings are (although some claim the body can convert Hg into ogranoHg)
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Now, what if the small amounts of Hg in the fillings actually have a Homeopathic effect? Maybe we are actually innoculating ourselves against mercury poison?
EAT ALL THE TUNA AND SALMON YOU WANT!!!!
 
joobz said:
Now, what if the small amounts of Hg in the fillings actually have a Homeopathic effect? Maybe we are actually innoculating ourselves against mercury poison?
EAT ALL THE TUNA AND SALMON YOU WANT!!!!
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Could I mutate into a huge monster like that bear in Prophecy? That would be so cool! I'd be like "RRRRAARRGH!!!" and everybody would be all like "AAAAAAGH!!!" then I'd be like "BWAAHAHAHAHA!!!" and the National Guard would be like "SHOOT IT! SHOOT IT! FIRE!" *budabudabudabuda KERBLAMO!*

Steve
 
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