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Related Experiment Videos

Does amalgam affect the immune system? A controversial issue

S Eneström1, P Hultman

  • 1Department of Pathology I, Linköping University, Sweden.

International Archives of Allergy and Immunology
|March 1, 1995
PubMed
Summary

Dental amalgam exposure can cause hypersensitivity reactions in a small number of genetically susceptible individuals. Further research is needed to identify these individuals and understand the immunological risks of dental amalgam.

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Clinical and experimental immunology·2007

Area of Science:

  • Immunology
  • Dental Materials Science
  • Toxicology

Background:

  • Dental amalgam, used for over 150 years, faces scrutiny over potential health hazards.
  • Exposure to mercury and other metals (Ag, Sn, Cu, Zn) from amalgam occurs through vapor, saliva, and blood absorption.
  • Amalgam fillings are a primary source of mercury exposure in the general population.

Purpose of the Study:

  • To investigate the link between dental amalgam exposure and adverse immunological reactions.
  • To identify specific human leukocyte antigen (MHC) genotypes associated with susceptibility to amalgam-related reactions.
  • To explore the potential for amalgam metals to induce autoimmunity.

Main Methods:

  • Review of experimental and clinical data on hypersensitivity and systemic reactions to dental amalgam metals.

Related Experiment Videos

  • Analysis of genetic factors (MHC genotypes) influencing individual susceptibility.
  • Consideration of animal studies on metal-induced autoimmunity.

    • Main Results:

    • Hypersensitivity reactions to dental amalgam metals occur infrequently.
    • Adverse immunological reactions are likely linked to specific MHC genotypes, affecting a small subset of individuals.
    • Distinguishing true amalgam-related reactions from other conditions like multiple chemical sensitivity syndrome is challenging.

    Conclusions:

    • Individuals with specific MHC genotypes are susceptible to adverse immunological reactions from dental amalgam.
    • Identifying susceptible individuals is difficult in the general population.
    • Further research is required to understand the role of combined metal exposure and identify susceptible genotypes, especially in light of potential metal-induced autoimmunity.