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Fox News Expert: Fluoride Has Been a Big Experiment

Categories: Audio / Video, Dr. Marvin's Blog, Fluoride Toxicity, Hot Topics, News, VideosAuthor: Dr. Marvin

Interesting video from a Fox News segment recently. They had their guest expert on who was a dentist to discuss fluoride. This dentist calls fluoride a “big experiment” and talks about how many unfluoridated communities have LESS decay than fluoridated communities.

Take it for what it’s worth, but it’s yet another sign that dentistry is slowly (and begrudgingly) coming to realize that much of what the industry has supported for the past 50 to 100 years has simply been flat out wrong.

It’s time to stand up and admit to mistakes in order to protect the population — instead of protecting the special interest groups.

High Mercury Emissions from Dental Clinics Despite Amalgam Separators

Categories: Mercury Amalgam Fillings Research, Mercury Toxicity, ResearchAuthor: kkraterman

Mercury (Hg) as amalgam has been used as a dental filling material for more than 150 years. Thereby, dentists and their patients have been directly exposed to Hg, and the public and the environment indirectly exposed via Hg emissions from incinerators and Hg in waste water from households and dental clinics. Here we present actual Hg emissions via waste water from 12 dental clinics equipped with the same type of amalgam separator based on sedimentation. All waste water was collected for four consecutive working days, initially at ordinary operating conditions and a second time after a thorough revision and cleaning of the discharge system. The results indicate that mercury emissions from dental clinics can be reduced by an improved design of the discharge system, a sensible use of high pressure water cleaning, and regular maintenance, including replacement of amalgam separators and filters at certain intervals. The study also indicates that banning Hg in dentistry is the one long-term way to stop Hg emissions from dental amalgam.

Hylander LD, Lindvall A, Gahnberg L. Sci Total Environ. 2006 Jun 1;362(1-3):74-84. Epub 2005 Jul 28. 16054673 PubMed

Biliary Secretion of Glutathione and of Glutathione-Metal Complexes

Categories: Mercury Toxicity, News, ResearchAuthor: kkraterman

As bile is the main route of elimination of many metals, a large number of studies have been directed toward the characterization of the hepatobiliary transport of both endogenous and exogenous metals. Although some progress has been made, we still know little of the basic mechanisms involved in the hepatocellular uptake of metals, in their intracellular translocation and metabolism, or in their transport into bile. Our recent studies have focused on the last step in the hepatobiliary transport of mercury, namely, the secretion of the metal from liver cells into bile. The rate of secretion of methyl and inorganic mercury into bile was low in suckling rats and rapidly increased to adult rates soon after weaning. These changes closely followed similar developmental changes in the biliary secretion of reduced glutathione (GSH). When GSH secretion into bile was completely inhibited, without changing hepatic levels of GSH or mercury, mercury secretion was also completely blocked. Mercury secretion paralleled individual and sex-related differences in GSH secretion. At the same time, the secretion of mercury was independent of bile flow, of the thiol and mercury concentration gradients between bile and liver cells, and of those between bile and plasma. Our results, therefore, indicate a close coupling between the secretion of mercury and that of GSH. These in vivo findings, along with in vitro studies by others in vesicles isolated from the canalicular membrane of the liver cell, indicate a carrier-mediated transport system for GSH, but the nature of the linkage of this transport system with mercury secretion is not yet fully established. Our data and those in the literature are consistent with the involvement of at least two steps in the movement of mercury from liver cells to bile–the formation of a mercury-glutathione complex in the liver cell, followed by the secretion of this complex through a process closely linked to GSH secretion. The identification of GSH as an endogenous complexing agent in the transport of metals between tissues and body fluids now permits the design of therapeutic strategies aimed at exploiting this transport vehicle to effect the removal of metals via physiological routes of excretion. The present discussion considers the role of GSH in the hepatobiliary transport of metals. In doing so, a brief review is given of current understanding of hepatic GSH metabolism and transport.

Ballatori N, Clarkson TW. Fundam Appl Toxicol. 1985 Oct; 5(5):816-31. 4065458 PubMed.

California Keeps Warning Label on Amalgam

Categories: Hot Topics, Mercury Toxicity, NewsAuthor: admin

In November of 2010, the California Dental Board announced it would be reviewing the Watson Law fact sheet (a sheet of paper dentist are required to make available to patients that states warnings on various dental materials, including mercury amalgam fillings). The subcommittee reviewing the sheet consisted of two pro-mercury dentists. At that time, there was a real threat of the warning about amalgam being removed entirely from the sheet.

Today, Charlie Brown of National Counsel, Consumers for Dental Choice, announced that the mercury amalgam label will in fact REMAIN on the Watson Law fact sheet.

You can see his message in it’s entirety, below.

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California Dental Board Backs Down on Amalgam Fact Sheet

Dear California dentists, health professionals, and consumers,

The Dental Board of California has dropped a plan to weaken the warnings about amalgam required in the Watson Law fact sheet. The stark warnings in that fact sheet – which must go to every dental patient – will remain:

“Dental Amalgam: Mercury in its elemental form is on
the State of California’s Proposition 65 list of chemicals
known to the state to cause reproductive toxicity.
Mercury may harm the developing brain of a child or fetus.”

At its November 2010 meeting, the Dental Board announced that it would review the fact sheet and created a subcommittee of two pro-mercury dentists to propose changes. While the Board was content to let the California Dental Association call the shots, Consumers for Dental Choice was ready to make the mercury-free dentistry movement heard.

We began to organize the kind of coalition we had that led to the demise of the predecessor dental board (which, in violation of the Watson Law, had refused to produce any fact sheet at all). Consumer activist Anita Vazquez Tibau testified before the Board at its November 5 meeting, calling for a stronger – not a weaker – fact sheet, one that acknowledged the 2009 FDA rule’s warning that amalgam endangers the neurological systems of children and unborn babies. We followed up with strongly-worded letters. While the Board’s executive officer refused to answer, he got the message.

Last Friday, the Dental Board retreated, announcing it will not weaken the California fact sheet.

– Charlie

Charlie Brown
National Counsel, Consumers for Dental Choice

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What is the Watson Law Fact Sheet? This note comes from Wellsphere.com (http://www.wellsphere.com/healthy-living-article/california-dental-board-will-consider-revising-watson-law/1268278):

“LNH Note: The Watson Law, passed in 1992, requires the Dental Board to list the risks of mercury and other dental fillings. The previous Dental Board ducked its responsibilities under the Watson Law so blatantly, that the legislature shut the Board down. The Figueroa Amendment, passed in 2001, requires dentists to distribute a consumer-friendly fact sheet to patients. Have you ever received one from your dentist?”

http://www2.fluoridealert.org/Alert/United-States/California/Congresswoman-Diane-Watson-D-California-Introduces-Bill-to-Ban-Mercury-Amalgams