the coincidence of MS and amalgam fillings ??
http://www.hendess.net/ms_e.htm#Amalgam

WHAT INTEGRATIVE DENTISTS SAY ABOUT AMALGAMS

Dr. Hal Huggins, a dentist and researcher, has an abundance of information on his site, including a podcast for those who prefer that source of information.
http://hugginsappliedhealing.com/

"Smoking Tooth Video"
http://www.youtube.com/watch?v=9ylnQ-T7oiA

Further explanation on the effects.
http://www.youtube.com/watch?v=GDnfeIwd0wI

Andrew Cutler's protocol for dealing with it is the best I've seen.
I respect his emphasis on patient safety.
http://onibasu.com/wiki/Cutler_protocol
http://www.noamalgam.com
http://www.noamalgam.com/hairtestbook.html
Recent Podcast by Cutler
http://www.blogtalkradio.com/thecandystore