Composition of amalgam fillings

Amalgams are composed of 50% mercury like the other poster said.

http://www.smilesofbellevue.com/mercury-fillings.html


Composition of Amalgam:

50% Mercury
35% Silver
14% Tin
0.1% Zink
0.3% Copper


And like he said, if the mercury leached out, the filling would be 50% gone.



Scientific studies have shown that Amalgam not only leaks out YEARS after it's been placed, but it's also a significant amount.

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Is this amount of Mercury Significant?

The number one source of mercury in most people has been documented to be dental Amalgam fillings and most of the thousands of people with several mercury fillings who have been tested were found to have daily exposure levels exceeding Government safety guidelines.

US EPA 1996 “integrated Risk Information systems, National Center for Environmental Assessment, Mark Richardson, Environmental Health Directorate, Health Canada, Assessment of Mercury Exposure and Risks from Dental Amalgam 1995, Final Report.
G.M. Richardson et al “A Monte Carlo Assessment of Mercury Exposure and Risks from Dental Amalgam.” Human and Ecological Risk Assessment 2(4), 709-761
Agency for Toxic Substance and Disease Registry, US Public Health Service, “Toxicological Profile for Mercury”, 1994. B
Windham, Ed., Annotated Bibliography: Health Effects of Mercury and Amalgam Fillings and Results of Filling Replacement 1999 (over 400 Medical Studies and scientific journal references).

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Does Mercury Vapor Escape from Fillings?

YES. Scientific evidence from Universities of Iowa, Calgary, Oral Roberts and New Zealand.

Svare, C.W. Dental Amalgam Related Mercury Vapor Exposure. Cal. Dent. Ass J. pp 55-60, Oct. 1984.
Vimy, et al. Intra-Oral Air Mercury Released From Dental Amalgam. J. Dent. Res. Vol 64, 1069-1071, August 1985
Vimy, et al. Intra-oral Air Mercury. Estimation of Daily Dose from Dental Amalgam J. Dent. Res. Vol. 65:1072-1075. Aug 1986.
Emler et al. An assessment of mercury in mouth air. J. Dent. Res. Vol 64:247, IADR Abstract No. 652, 1985
Patterson et al, Mercury in Human Breath from Dental Amalgams, Bul Environ. Contam. Toxicol. 34:459-468, 1985