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Toxic elements in silicate cements.

D Brune

    Scandinavian Journal of Dental Research
    |December 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Toxic elements like beryllium, cadmium, and lead were detected in some silicate cements. Potential transfer to the gastrointestinal tract was assessed, highlighting safety considerations for dental materials.

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    Area of Science:

    • Materials Science
    • Analytical Chemistry
    • Toxicology

    Background:

    • Silicate cements are widely used in dental applications.
    • Assessing the elemental composition of dental materials is crucial for patient safety.
    • Trace elements can pose toxicological risks if released from the material matrix.

    Purpose of the Study:

    • To characterize the elemental composition of six silicate cement brands.
    • To identify and quantify minor and trace elements, focusing on potentially toxic ones.
    • To estimate the potential transfer of elements to the gastrointestinal tract.

    Main Methods:

    • Optical emission spectrography (OES) was employed for elemental analysis.
    • Six different brands of silicate cements were analyzed.

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  • Quantification of elements in both powder and liquid components was performed.

    • Main Results:

    • Beryllium was found in two powders (1.3-1.6%), cadmium in two powders (0.02-0.03%), and lead in three powders (0.001-0.003%).
    • Other detected elements included bismuth, boron, copper, gallium, iron, manganese, titanium, tin, and zirconium (0.001-0.1%).
    • Calculations were made for the upper limits of elemental transfer to the gastrointestinal tract.

    Conclusions:

    • The presence of toxic elements like beryllium, cadmium, and lead in some silicate cements warrants attention.
    • Further research is needed to fully understand the clinical implications of these findings.
    • Risk assessment regarding oral dissolution and gastrointestinal transfer is essential for dental material safety.