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Dependence of kinetic variables in the short-term release of Hg2+, Cu2+ and Zn2+ ions into synthetic saliva from an high-copper dental amalgam

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Abstract

The short term (up to 14 days after restoration) release of selected ions (i.e., Hg2+, Cu2+ and Zn2+) from Dispersalloy® into artificial saliva has been evaluated in regards to the nature of the saliva (Fusayama and McCarty and Shklar’s solutions), the amount of amalgam, the time of contact and the periodical renewal (every 48 h interval) of artificial saliva. The evaluation of the ionic fraction of such metals has been accomplished by using anodic stripping methods (i.e., Differential Pulse Anodic Stripping Voltammetry, DPASV) with a 7 μm graphite disk microelectrode as a working electrode. Data obtained in this work are almost unprecedented in the literature due the fact that such analytical method exclude metals in non-ionic forms (e.g., metals or organometallic compounds). The high concentrations measured in every experimental condition confirm the concern for the short-term release of metals from amalgam into saliva.

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Authors and Affiliations

  1. Dental Institute, University of Sassari, viale San Pietro 43c, 07100, Sassari, Italy

    Guglielmo Campus & Pierfranca Lugliè

  2. Nanoworld Institute, Nanoscience Laboratories, University of Sassari, via Vienna 2, 07100, Sassari, Italy

    Guglielmo Campus, Leonardo Gaspa & Gavino Sanna

  3. College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA

    Franklin Garcia-Godoy

  4. Biomedical Sciences Department, University of Sassari, viale San Pietro 43b, 07100, Sassari, Italy

    Leonardo Gaspa

  5. Chemistry Department, University of Sassari, via Vienna 2, 07100, Sassari, Italy

    Angelo Panzanelli, Paola C. Piu, Giovanni Micera & Gavino Sanna

Authors
  1. Guglielmo Campus
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  2. Franklin Garcia-Godoy
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  3. Leonardo Gaspa
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  4. Angelo Panzanelli
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  5. Paola C. Piu
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  6. Giovanni Micera
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  7. Pierfranca Lugliè
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  8. Gavino Sanna
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Correspondence to Gavino Sanna.

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Campus, G., Garcia-Godoy, F., Gaspa, L. et al. Dependence of kinetic variables in the short-term release of Hg2+, Cu2+ and Zn2+ ions into synthetic saliva from an high-copper dental amalgam. J Mater Sci: Mater Med 18, 1521–1527 (2007). https://doi.org/10.1007/s10856-007-0124-3

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  • DOI: https://doi.org/10.1007/s10856-007-0124-3

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