Re: Dental Profession Logic Re: Amalgam
From: Joel M. Eichen, D.D.S. (joeleichen_at_yahoo.com)
Date: 06/29/04
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Date: Tue, 29 Jun 2004 18:45:05 -0400
On 29 Jun 2004 21:47:07 GMT, jdrew63929@aol.com (Jan) wrote:
>>Subject: Re: Dental Profession Logic Re: Amalgam
>>From: W_B no_one@nowhere.net
>>Date: 6/29/2004 12:25 PM Pacific Standard Time
>>Message-id: <mlj3e01ekvhsbcilnu8cpt73rlhceo9er6@4ax.com>
>>
>>On Tue, 29 Jun 2004 07:10:28 -0400, "Joel M. Eichen, D.D.S."
>><joeleichen@yahoo.com> wrote:
>>
>>>The Truth Shall Set Ye Free
>>
>>
>>The truth shall *make* you free.
>>--
>>
>>W_B
>
>The truth is most dentists HERE don't read and don't want to know the truth.
>
>Jan
... and they are covering their buns, right Jan?
>
>
>http://www.amalgam.org./
>
>http://www.testfoundation.org/amalgam.htm
>
>http://www.algonet.se/~leif/FUSCIFCT.html
>
>http://ehpnet1.niehs.nih.gov/docs/1999/107p587-591grandjean/abstract.html
>
>http://www.bioprobe.com/reviews.asp?review_id=11
>
>http://www.skeptics.com.au/features/weird/media/mw-dentalamalgam.htm
>
>http://www.geocities.com/toothk/breiner.html
>
>http://emporium.turnpike.net/P/PDHA/mercury/asr.htm
>
>http://www.sevaonline.com/English/RechUK.htm
>
>
>http://www.whale.to/d/wantling.htm
>
>
>http://www.yourhealthbase.com/amalgams.html
>
>http://www.holisticdental.org/index.html
>
>http://home.online.no/~reiersol/classact.htm
>
>http://www.icnr.securesites.com/hhnewsl.html
>
>http://www.cfsn.com/ADArebut.html
>
>http://www.thorne.com/townsend/oct/mercury.html
>
>
>http://www.toxicteeth.net
>
>http://www.lichtenberg.dk/symptoms_before_and_after_proper.htm
>
>
>http://www.web-light.nl/AMALGAM/amalgam.html
>
>http://www.lef.org/magazine/mag2001/may2001_report_mercury_1.html
>
>http://www.web-light.nl/AMALGAM/EN/enmframe.html
>
>http://www.zipworld.com.au/~rgammal/AmalgamFrameSet.htm
>
>
>http://www.selene.com/healthlink/amalgam.html
>
>http://www.earthtym.net/merc-tox.htm
>
>http://www.geocities.com/pamshelpline/mercuryfillings.htm
>
>http://ehis.niehs.nih.gov/topic/heavymetal.html
>
>http://www.heart-disease-bypass-surgery.com/data/articles/63.htm
>
>
>http://www.health.gov/environment/amalgam1/appendixIII.htm
>
>http://www.lichtenberg.dk/experience_after_amalgam_removal.htm
>
>
>http://www.notdoctors.com/mercfill.html
>
>http://www.whale.to/d/cancer.html
>
>
>http://www.holisticmed.com/dental/amalgam/child.html
>
>http://www.geocities.com/toothk/bernieref1.html
>
>http://www.talkinternational.com/TTCHPTR9.htm
>
>http://www.bioprobe.com/faq.asp
>
>http://www.mercury-free.com/
>
>http://www.home.earthlink.net/~berniew1/periodon.html
>
>http://www.zipworld.com.au/~rgammal/Are_Dentist_Really_Healthy.html
>
>http://www.medical
>library.net/specialties/framer.html?/specialties/_biological_and_mercury_f
>ree_dentistry.html
>
>http://www.home.earthlink.net/~berniew1/indexa.html
>
>http://www.ariplex.com/ama/amatalbo.htm
>
>
>http://www.bhoffcomp.com/coping/amalgam.html
>
>http://www.amalgam.ukgo.com/talbot82.htm
>
>Summary of excerpts:
>1. Hg plasma concentration correlated with no.of amalgam fillings.
>http://tinyurl.com/cdb0 2003
>
>2. Correlation between number of fillings and salivary Hg.
>http://tinyurl.com/cgs0 2000
>
>3. The amount of organic and inorganic mercury in paraffin-stimulated
>saliva was significantly higher in subjects with dental amalgam fillings
>http://tinyurl.com/cgs1 2001
>
>4. Mercury vapour release increases with chewing, with absorption and
>uptake by the brain and kidneys.
>http://tinyurl.com/cczd 2002
>
>5. Amalgam causes nerve cell toxicity in culture.
>http://tinyurl.com/ccyo 2003
>
>6. Plasma concentrations of mercury before and after treatment
>supported the metal exposure to be causative for the ill health.
>http://tinyurl.com/ccyr 2002
>
>7 None of the materials tested consistently prevented microleakage.
>http://tinyurl.com/cfcg 2002
>
>8. In neither of the nonamalgam groups was this [wastewater] limit
>exceeded, but 20.5% in the amalgam group exceeded the limit
>http://tinyurl.com/ccyu 2002
>
>9. I-Hg levels in placenta increased with an increasing number of
>maternal dental amalgam fillings (p < 0.001)... a substantial fraction of
>maternal blood I-Hg, probably as Hg(0), reached the fetus.
>http://tinyurl.com/cgrz 2002
>
>10 Evidence of a pro-oxidant role of the amalgam Hg chronically released
>in saliva.
>http://tinyurl.com/cgrv 2002
>
>11. Mercury released into air from dry abraded amalgam
>was shown to be above the recommended industrial limit
>http://tinyurl.com/cf7j 2002
>
>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_
>uids=2270464&dopt=Abstract
>
>
>Sci Total Environ 1990 Dec 1;99(1-2):1-22 Related Articles,Links
>
>Does mercury from amalgam restorations constitute a health hazard?
>
>Weiner JA, Nylander M, Berglund F.
>
>National Board of Occupational Safety and Health, Solna, Sweden.
>
>Amalgam is the most extensively used implant material in dentistry. There have
>been no clinical trials of this substance and there are no epidemiological
>studies that allow any conclusions on the safety of amalgam fillings. Amalgam
>restorations continuously emit mercury vapour, which is absorbed in
>considerable quantities via the lungs. A comparison with dose-effect
>relationships, obtained in occupational studies, for certain effects on the
>kidneys and central nervous system (CNS), suggests that individuals with
>unusually high emission of mercury from amalgam fillings are at risk. It is
>unclear whether or not clinically significant effects could be expected. The
>limited sensitivity of available occupational studies, together with
>insufficient knowledge of possible host factors affecting resistance to
>mercury, implies that other more severe effects in susceptible individuals
>cannot be excluded. Information on long-term effects on organs other than brain
>or kidney is sparse. Animal studies suggest the possibility of immune system
>reactions to mercury, i.e. development of autoimmunity, that are not primarily
>dose-dependent, but rather depend on genetic susceptibility. From a
>toxicological point of view, amalgam is an unsuitable material for dental
>restorations.
>
>Publication Types:
>Review
>Review, Academic
>PMID: 2270464 [PubMed - indexed for MEDLINE]
>
>Environmental medicine, part three: long-term effects of chronic low-dose
>mercury exposure.
>
>Crinnion WJ.
>
>Healing Naturally, 11811 NE 128th St., Suite 202, Kirkland, WA 98034, USA.
>
>Mercury is ubiquitous in the environment, and in our mouths in the form of
>"silver" amalgams. Once introduced to the body through food or vapor, mercury
>is rapidly absorbed and accumulates in several tissues, leading to increased
>oxidative damage, mitochondrial dysfunction, and cell death. Mercury primarily
>affects neurological tissue, resulting in numerous neurological symptoms, and
>also affects the kidneys and the immune system. It causes increased production
>of free radicals and decreases the availability of antioxidants. It also has
>devastating effects on the glutathione content of the body, giving rise to the
>possibility of increased retention of other environmental toxins. Fortunately,
>effective tests are available to help distinguish those individuals who are
>excessively burdened with mercury, and to monitor them during treatment.
>Therapies for assisting the reduction of a mercury load include the use of
>2,3-dimercaptosuccinic acid (DMSA) and 2,3-dimercato-1-propanesulfonic acid
>(DMPS). Additional supplementation to assist in the removal of mercury and to
>reduce its adverse effects is discussed.
>
>Publication Types:
>Review
>Review, Tutorial
>PMID: 10869102 [PubMed - indexed for MEDLINE]
>
>Summary Brief Abstract Citation MEDLINE ASN.1 XML/SGML LinkOut Related Articles
>Protein Links Nucleotide Links Popset Links Structure Links GenomeLinks OMIM
>Links Structure Domains Links
>
> 1: Stomatologiia (Mosk) 1997;76(4):9-11 Related Articles, Books [Patterns
>of mercury release from amalgam fillings into the oral cavity].[Article in
>Russian]Motorkina AV, Barer GM, Volozhin AI.
>
>Seventy-five subjects aged 20 to 57 with 1 to 15 fillings of silver amalgam
>were examined. The level of mercury vapors in the oral cavity was assessedusing
>an AGP-01 device and the method developed by the authors. Emission of mercury
>vapors in the oral cavity increased with the number of fillings. The
>concentration of mercury in the oral cavity depends largely on the number
>ofsilver amalgam fillings and less so on these fillings' length of service.Adv
>Dent Res 1992 Sep;6:110-3
>
>Related Articles, Books, LinkOut Side-effects: mercury contribution to body
>burden from dental amalgam.Reinhardt JW.Department of Operative Dentistry,
>University of Iowa College of Dentistry,Iowa City 52242.
>
>The purpose of this paper is to examine and report on studies that relate
>mercury levels in human tissues to the presence of dental amalgams, giving
>special attention to autopsy studies. Until recently, there have been few
>published studies examining the relationship between dental amalgams and tissue
>mercury levels. Improved and highly sensitive tissue analysis techniques have
>made it possible to measure elements in the concentration range of parts per
>billion. The fact that mercury can be absorbed and reach toxic levels in
>humantissues makes any and all exposure to that element of scientific interest.
>
>Dental amalgams have long been believed to be of little significance as
>contributors to the overall body burden of mercury, because the elemental form
>of mercury is rapidly consumed in the setting reaction of the
>restoration.Studies showing measurable elemental mercury vapor release from
>dental amalgams have raised renewed concern about amalgam safety.
>
>Mercury vapor absorption occurs through the lungs, with about 80% of the
>inhaled vapor being absorbed by the lungs and rapidly entering the bloodstream.
>Following distribution by blood circulation, mercury can enter and remain in
>certain tissues for longer periods of time, since the half-life of excretion is
>prolonged. Two of the primary arget organs of concern are the central nervous
>system and kidneys.
>
>Publication Types: Review Review, Tutorial PMID: 1292449 [PubMed - indexed for
>MEDLINE] 1: FASEB J 1990 Nov;4(14):3256-60 Related Articles, Books, LinkOut
>
>Comment in: FASEB J. 1991 Feb;5(2):236.
>
>Whole-body imaging of the distribution of mercury released from dental fillings
>into monkey tissues.Hahn LJ, Kloiber R, Leininger RW, Vimy MJ, Lorscheider
>FL.Department of Radiology, University of Calgary, Faculty of Medicine,
>Alberta,Canada.
>
>The fate of mercury (Hg) released from dental "silver" amalgam tooth fillings
>into human mouth air is uncertain. A previous report about sheep revealed
>uptake routes and distribution of amalgam Hg among body tissues. The present
>investigation demonstrates the bodily distribution of amalgam Hg in a monkey
>whose dentition, diet, feeding regimen, and chewing pattern closely resemble
>those of humans.
>
>When amalgam fillings, which normally contain 50% Hg, are made with a tracer of
>radioactive 203Hg and then placed into monkey teeth, the isotope appears in
>high concentration in various organs and tissues within 4wk. Whole-body images
>of the monkey revealed that the highest levels of Hg werel ocated in the
>kidney, gastrointestinal tract, and jaw.
>
>****The dental profession's advocacy of silver amalgam as a stable tooth
>restorative material is not supported by these findings.****PMID:
>
>2227216 [PubMed - indexed for MEDLINE]
>
>1: Neurotoxicology 1983 Fall;4(3):201-4 Related Articles, Books,LinkOut
>
>Mercury toxicity and dental amalgam.Wolff M, Osborne JW, Hanson AL.There is
>adequate evidence that dental amalgam restorations, during and after placement,
>results in the release of Hg into the patient's body. Whether the Hg released
>from amalgam is due to placement procedures, surface abrasion, orl ater
>corrosion breakdown, there is evidence that a low level Hg release continues
>for years.
>
>****It is generally agreed that if amalgam was introduced today as a
>restorative material, they would never pass F.D.A. approval.****
>
>With new and more accurate techniques of measuring Hg levels, especially in
>tissue and blood, additional studies are necessary to relate blood-Hg levels
>with dental amalgam restorations. Studies must relate existing restorations as
>well as the placement of new restorations to body-Hg levels.
>
>It is possible that we have accepted a potentially dangerous material as being
>safe.
>
>Publication Types: Historical Article PMID: 6361623
>
>[PubMed - indexed for MEDLINE]
>
>http://www.zyra.org.uk/mercury3.htm
>
>1. Correlation of plasma Hg with no.of amalgam fillings.
>http://tinyurl.com/cdb0 2003
>
>2. Correlation of salivary Hg with no.of amalgam fillings.
>http://tinyurl.com/cgs0 2000
>
>3. Correlation of Hg with no.of amalgam fillings or total
>amalgam surface. Evidence of pro-oxidant role of amalgam Hg.
>http://tinyurl.com/cgrv 2002
>
>4. Amount of Hg in saliva [I-Hg + H(0)] significantly higher in subjects
>with amalgam fillings.
>http://tinyurl.com/cgs1 2001
>
>5. I-Hg levels in placenta increased with an increasing number of
>maternal dental amalgam fillings .... a substantial fraction of
>maternal blood I-Hg, probably as Hg(0), reached the fetus.
>http://tinyurl.com/cgrz 2002
>
>6. Mercury vapour release increases with chewing, with absorption and
>uptake by the brain and kidneys. (Ref in lit report) "...it has not been
>possible to set a level for mercury in blood or urine below which mercury
>related symptoms will not occur."
>http://tinyurl.com/cczd 2002
>
>7. None of the materials tested consistently prevented microleakage.
>http://tinyurl.com/cfcg 2002
>
>8. In neither of the nonamalgam groups was the wastewater limit
>exceeded, but 20.5% in the amalgam group exceeded the limit.
>http://tinyurl.com/ccyu 2002
>
>9. Amalgam caused nerve cell toxicity in culture.
>http://tinyurl.com/ccyo 2003
>
>10. Amalgam induced chromosome aberrations in vitro.
>Effects of low level Hg on humans are not clear.
>http://tinyurl.com/cgrx 2001
>
>11. Amalgam increased production of antinuclear antibodies
>(a risk factor in autoimmune disease).
>http://tinyurl.com/cf81 2003
>
>
>http://www.chem-tox.com/pregnancy/mercury.htm
>
>Low Level Mercury Causes Behavior Problems During Pregnancy
>
>Subtle behavior problems were observed in mice offspring exposed to a single
>low level mercury dose.
>
>In summarizing the results of their study, the researchers stated,
>
>"This hypothesis generating study showed highly significant correlations
>between mood scores and most measures of low level Hg (mercury) exposure. The
>specific mood measures most associated with Hg exposure were tension, fatigue,
>and confusion. The strength of these associations suggests that mood should be
>included for investigation in future hypothesis-testing studies..... Among the
>cognitive and motor function tests, only the digit span and simple reaction
>time (nondominant hand) scores were associated with any measure of
>exposure...... Overall, and despite the small size of the study population,
>this investigation found some evidence of adverse preclinical effects at
>mercury doses averaging 36 ugs/l in urine. The mood and symptom results of this
>study agree with prior evaluations of both high and low urinary mercury doses.
>These preliminary survey findings support a critical evaluation of the adequacy
>of the 50 ug/g creatinine biologic threshold for mercury proposed by the World
>Health Organization This is the first U.S. dental study to detect potential
>behavioral deficits at such a low level of exposure. A larger and more
>comprehensive study is required to accurately determine a biologic threshold of
>adverse central and peripheral nervous system effects for elemental mercury."
>
>Drs. Diana Echeverria, Nicholas J. Heyer, Michael D. Martin, Conrad A Naleway
>Depart. of Environ. Health, Univ. of Washington, School of Dentistry, Univ. of
>Washington
>Neurotoxicology and Teratology, Vol. 17(2):161-168, 1995
>
>
>Dopamine Uptake in Brain Cells Changed By Methylmercury
>
>Attention Deficit Disorder children were reported in other headings in this
>book as having altered dopamine levels. Several compounds, including alcohol,
>have been shown to alter dopamine levels in test animals. Now, researchers at
>Duke University Medical School have shown that even very low levels of
>methylmercury result in dopamine and norepinephrine brain neurotransmitter
>changes.
>
>http://www.icnr.securesites.com/hhnewsl.html
>
>US Government Document Admits That Mercury Vapors From Silver Fillings Exceeds
>The Minimum Risk Levels Established By The US Department of Health & Human
>Services!
>
>http://www.ephca.com/ci&cme.htm
>
>The biology of mercury toxicity has usually been studied after acute short
>exposure (hours, days) not chronic (years) low long term exposure. Exposure
>from amalgam fillings occurs without interruption for many years and if 3-17
>micrograms are lost per day in vapor alone that is 1095 micrograms to 6200
>micrograms per year which can amount to as much as 120 mg over 20 years from
>the fillings alone---that's a huge amount!!!
>
>http://www.mercola.com/2001/jun/9/amalgam_safety.htm
>
>Boyd E. Haley Professor and Chair behaley@pop.uky.edu
>Department of Chemistry University of Kentucky
>http://www.uky.edu/
>
><snip>
>
>These deaths were identified as being due to a low level toxicity delivered by
>caterpillars eating poison plants and later, on migration, depositing their
>waste products on grass being eaten by the mares.
>
>The point being, it is the infant in utero that suffered most on exposure to
>low level, toxins, not the mother. Combined mercury toxicities can be
>devastating, as I reference below and in the many references available on the
>http://www.testfoundation.com website
>
><snip>
>
>However, the fact is that it is quite easy to detect mercury emitting from one
>amalgam using these analyzers. Therefore, the "estimate" by this ADA spokesman
>is way too low.
>==============================
>9. The half-time for the elimination of a single dose of mercury is extremely
>long, certainly at least 30 days for the whole body, and perhaps as long as
>10,000 days for the brain. Multiple small doses will therefore result in body
>accumulation.
>
>17. The earliest symptoms of long term, low level mercury poisoning are
>subclinical and neurological. Consequently, due to their subtlety, these
>symptoms are easily misdiagnosed.
>
>
>S. Soderstrom, A Fredriksson, L. Dencker, T. Ebendal, "The effect of mercury
>vapour on cholinergic neurons in the fetal brain: studies on the expression of
>nerve growth factor and its low- and high-affinity receptors," Developmental
>Brain Research 85, 96-108 (1995)
>
>These findings suggest that low levels of prenatal mercury vapour
>exposure can alter the levels of the NGF and its receptors, indicating neuronal
>damage and disturbed trophic regulations during development.
>
>What are the Health Impacts?
>
>Mercury is an element that occurs naturally in the earth?s crust. Most people
>and wildlife can generally tolerate the extremely low levels of this naturally
>occuring substance. When mercury enters the body it becomes concentrated in
>tissue, an effect known as bioaccumulation. Since this element is toxic at very
>low concentrations, even slight increases in the minute concentrations
>naturally present in the environment can have serious effects on humans and
>wildlife.
>
>Mercury is a neurotoxin in low doses, affecting the functioning and
>development of the nervous system. Depending on the level of exposure, this
>toxin can have varied health effects ranging from mental retardation to death.
>
>Mercury definitely has the ability to cross the placental membranes and so
>>> cause health disorders in the unborn child. In studies done by Marsh et al
>in
>>> 1981 and 1987, they showed that mothers with hair mercury levels of 70-640 m
>>> g/gm of hair during pregnancy have 30% increased risk of psychomotor and
>other
>>> neurological disorders in their infants. Even as low as 10-20 m g/gm can
>>> increase risk to 5% (WHO 1990).
>
> 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 Alzheimer¹s
>diseased brains. Mercury inhibits the efficiency of tubulin, a protein
>vital to brain cells, they explain.
>
>To Tell the Tooth
>
>by Steven F. Hinchey, D.M.D.
>
>While that is
>true, the cumulative release of low doses of mercury may be the same or more
>than recognized forms of mercury poisoning. Is it worse to have a mega exposure
>to mercury vapor at one time, or is it worse to have a continued low dose
>exposure over time? The theories of dental caries (tooth decay) now point to
>frequency of exposure to sugar as a strategy to reducing tooth decay. In other
>words, frequent small doses of sugar are more harmful to the teeth than one
>mega dose of sugar. The same theory probably holds true for mercury. Allergy
>desensitization techniques use the theory of very low dose exposures over a
>long period of time to cure.
>
>And there are many others.
>
>Jan
>
>
>
>
>
>
>
>
>
>
>
- Next message: Joel M. Eichen, D.D.S.: "Re: Dental Profession Logic Re: Amalgam"
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