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Copper in human subgingival calculus.

M Knuuttila, R Lappalainen, M Rajala

    Scandinavian Journal of Dental Research
    |April 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

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    Subgingival calculus contains high copper (Cu) concentrations that may impact mineralization. Zinc (Zn) and calcium (Ca) showed significant correlations with Cu levels in calculus samples.

    Area of Science:

    • Oral biology
    • Biochemistry
    • Analytical chemistry

    Background:

    • Subgingival calculus is a complex mineralized deposit.
    • Understanding the elemental composition of calculus is crucial for oral health research.

    Purpose of the Study:

    • To determine copper (Cu) concentrations in subgingival calculus.
    • To investigate the relationship between Cu and other cations (Ca, Mg, Fe, Zn, Pb) and fluoride (F).

    Main Methods:

    • Atomic absorption spectrophotometry was used to measure cation concentrations.
    • An ion-selective electrode analyzed fluoride content.
    • Multiple linear regression analysis evaluated elemental relationships.

    Main Results:

    • The mean Cu concentration in subgingival calculus was 48.4 ± 59.0 µg/g.

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  • Zinc (Zn), calcium (Ca), iron (Fe), and magnesium (Mg) explained 41.1% of the Cu content.
  • Zn showed a positive correlation (25.5%), while Ca exhibited a negative correlation (10.4%) with Cu.

    • Conclusions:

    • Subgingival calculus exhibits a high copper content.
    • The findings suggest that Cu concentration may influence calculus mineralization.
    • Elemental interactions, particularly with Zn and Ca, are significant factors in Cu levels.