Dental amalgam is common cause of thyroiditis & MS

Prochazkova J, Sterzl I, Kucerova H, Bartova J, Stejskal VD; The beneficial effect of Amalgam replacement on health in patients with autoimmunity. Neuro Endocrinol Lett. 2004 Jun;25(3):211-8.
http://www.nel.edu/pdf_/25_3/NEL250304A07_Prochazkova_.pdf

Results of lymphocyte reactivity measured with MELISA indicate that in vitro reactivity after the replacement of dental Amalgam decreased significantly to inorganic mercury, silver, organic mercury and lead. All 6 patients with MS showed significant improvement in health. Out of 15 patients with systemic lupus erythematosus (SLE) 11 (73%) had improvement of health. Out of 8 patients with autoimmune thyroiditis 6 showed significant improvement in health (75%). 5 patients undergoing Amalgam replacement had atopic eczema for which other studies have found more diverse factors in autoimmunity causes. 3 out of 5 of these patients had significant improvement in condition (60%). Of the patients that did not have evidence of significant improvement, most tested immune reactive to nickel and the autoimmunity measure was not improved at the end of the study. For those whose condition was worse, the autoimmunity measure for nickel was higher at the end of the study- indicating that amalgam replacement did not resolve the source of nickel exposure.