Monday, April 2, 2007

Smoking Teeth Confusion

Dr. Laidler’s criticism, Response to: "Smoking Teeth" - the truth gets "smoked out", reduces to the following propositions. First, he contends that what is actually being seen is water vapor; and second, since mercury is a heavier molecule than the other constituents of air (i.e. oxygen, nitrogen, carbon dioxide, etc) the mercury vapor could not rise, but would fall toward the floor. This analysis does is not consistent with the Laws of Physics and Chemistry for the following reasons.

First, atomic absorption spectrophotometry (AAS) is a well substantiated scientific analytical technique used to measure a wide range of elements in various materials such as metals, pottery and glass. It is based on the simple fact that some elements in the Periodic Table absorb specific wavelengths of light. This constitutes that materials fingerprint. In the case of mercury vapor the absorbance wavelength is 253.7nm.

Thus, when a pure material is vaporized by the application of heat, while specific wavelengths are sequentially shone at it, the wavelength absorbed tells one the element making up the sample. In it simplest form, gold miners employ this principle when mining for gold. In the natural state, gold has a very high attraction for mercury; the miner heats his ore sample in a dark container, while shining an ultraviolet light. If a vaporizing shadow is cast, then mercury is present and the sample is likely gold. The amount of light absorbed is proportional to the concentration of the mercury.

The video “Smoking Teeth = Poison Gas” is simply an application of this Miner’s Test, using an amalgam filling, containing approximately 50% mercury, as the sample. Water vapor will not absorb the wavelength from the Miner’s light; and, it will not cast a shadow. Therefore, for Dr. Laidler to suggest it will is unfounded. In the video, the vaporizing shadow is caused by mercury atoms absorbing the spectrum from the Miner’s light. A light, scientifically designed to identify the presence of mercury, not water. Water vapor cannot be visualized with a 254 mm light.

Secondly, Dr. Laidler is correct when he states, “When molecules vaporize, the volume they fill depends on the number of molecules and their temperature”. This is called the partial pressure and the partial pressure for mercury in air is 0.00185 mm at 250 C. However, Dr. Laidler fails to report that the vapor pressure of mercury doubles for every 100 C increase in temperature. Employing dubious calculations, Dr. Laidler concludes that because mercury is heavier than the other components of air, if what we saw was actually mercury vapor coming off those teeth, and not just water vapor, it should have been SINKING rather than rising - even at 370 degrees C.” This of course is false, since the mercury in the amalgam is being is heated, causing the mercury molecules to become more active and vaporize. Thus, the mercury vapor rises from the amalgam and spreads into the environment in accordance with Boyles Law of Gases, the Guy-Lussac Law, and Avogadro’s Law and the Law of Entropy. These laws indicate that gas molecules by natural law move away from each other. Therefore, concentrated mercury atoms near the tooth naturally move to a location where less mercury atoms reside. These laws of the behavior of gas have nothing to do with gravity as Dr. Laidler improperly assumes.

In conclusion, Dr. Laidler reports that “ever since (he) saw the video, (he) felt that there was something wrong with it.” Indeed, he is absolutely correct! It is wrong to place materials containing 50% poisonous elemental mercury into humans, while calling them “silver” fillings. It is wrong to promote such materials as safe, when there is no level of mercury exposure considered to be “safe”.

Dr. Laidler has tried to “Manufacture Uncertainty” where none actually exists.

12 comments:

byrdeye said...

AMEN!!!!!




I need help on selecting replacement materials, though?

This woman recommends (instead of plastic composites):


I would use bonded restorations (manufactured inlays) which are superior to plastic composites for durability and longevity. They are more expensive, and it takes two visits instead of one, but I believe that it is best for the health of the tooth (and the body) in the long run. If you're interested in exploring this further, ask your dentist about Cerac, Targis Vectris or Empress manufactured inlays.


What say you? Do you have a post comparing all the various alternatives?

Sarah said...

Great post! However, I worry about the risk of mercury and the vapor that you are mentioning. I'm about to have a visit to a Raleigh sedation dentist and I would like to clarify some of this to him. I haven't tried having fillings but most of those I've known were very positive to it. I guess, a free choice of the patient will still rule and that dentists like that in Raleigh sedation dentistry won't let their patients be harmed.

DrDK said...

Sarah I do not recommend sedation unless undergoing extensive surgery. As for fixing the damage to your teeth from having old mercury fillings that is an individual tooth by tooth decision that involves too many factors to give broad general answers. But if the hole is big you need to consider the two step visit with indirect inlays as best. Crowns only as a last solution.

Dr.Willmar Schwabe said...

The stuff in this blog is in not only incredible but also providing the great knowledge to the people. Dentist in Carrollton

David Kennedy, DDS said...

Dentistry's dirty little secret is out now and the research has confirmed not only was my 2000 video absolutely correct but now dental personnel are suing for on the job injury and winning. Dentistry was so focused on telling everyone that a deadly poison was safe that they poisoned themselves, their staff, their families and their patients.

They did this because the dental education system was hijacked by their trade association the ADA. The Ada is a political body and has no scientific credibility but enormous influence on politics and schools.

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Luke Forsyth said...

I want to be a dentist and I am studying general dentistry for children and adults.
Toronto General Dentistry

David Kennedy, DDS said...

Dear Luke,

In your education more accurately described as indoctrination you will be exposed to levels of mercury that are unlawful for any student and after graduation if you place or remove "Silver" amalgam [mercury] fillings you, your staff and your clients will also be exposed to mercury at levels many times the EPA minimum risk levels. Be careful on your career choices.

Diane said...

Dr. Kennedy, you're one of my online heroes. :) What's the status of those lawsuits now? Any progress toward justice?

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