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Amalgam tattoos: light and electron microscopy and electron-probe micro-analysis.

J D Harrison, P S Rowley, P D Peters

    The Journal of Pathology
    |February 1, 1977
    PubMed
    Summary

    Oral amalgam tattoos result from dental filling material embedding in oral tissues. Analysis reveals silver and tin particles persist in cells and tissues, indicating material degradation within the mouth.

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    Area of Science:

    • Oral pathology
    • Dental materials science
    • Histopathology

    Background:

    • Amalgam tattoos are a common finding in the oral mucosa.
    • These lesions result from the iatrogenic implantation of dental amalgam into soft tissues.
    • The composition and fate of amalgam particles within these tattoos are not fully understood.

    Purpose of the Study:

    • To investigate the cellular and extracellular distribution of amalgam particles in oral tattoos.
    • To analyze the chemical composition and potential degradation of amalgam within oral tissues.

    Main Methods:

    • Histopathological examination of fifteen oral amalgam tattoos.
    • Analysis of amalgam and its derivatives within cellular and extracellular components.
    • Elemental analysis to determine the composition of deposited particles.

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    Main Results:

    • Amalgam particles and their derivatives were identified within macrophages, fibroblasts, and multinuclear giant cells.
    • Fine particles were associated with basement membranes, collagen, elastic tissue, and nerve connective tissue.
    • Elemental analysis suggested corrosion, with loss of mercury and some tin, leaving silver and tin in cells and silver in fibroblasts and extracellular sites.

    Conclusions:

    • Oral amalgam tattoos represent a deposition of dental filling material.
    • The material undergoes degradation, with silver and tin being the primary remaining elements within cellular and extracellular locations.
    • Understanding the composition and distribution is crucial for oral pathology diagnosis.