Dependence of kinetic variables in the short-term release of Hg 2+, Cu2+ and Zn2+ ions into synthetic saliva from an high-copper dental amalgam

Guglielmo Campus, Franklin Garcia-Godoy, Leonardo Gaspa, Angelo Panzanelli, Paola C. Piu, Giovanni Micera, Pierfranca Lugliè, Gavino Sanna

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1521-1527
Number of pages7
JournalJournal of Materials Science: Materials in Medicine
Volume18
Issue number8
DOIs
StatePublished - Aug 1 2007

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Dental amalgams
Dental Amalgam
Saliva
Copper
Metals
Artificial Saliva
Ions
Mercury amalgams
Kinetics
Organometallic Compounds
Graphite
Microelectrodes
Organometallics
Voltammetry
Restoration
Electrodes

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Bioengineering
  • Biomaterials
  • Biomedical Engineering

Cite this

Dependence of kinetic variables in the short-term release of Hg 2+, Cu2+ and Zn2+ ions into synthetic saliva from an high-copper dental amalgam. / Campus, Guglielmo; Garcia-Godoy, Franklin; Gaspa, Leonardo; Panzanelli, Angelo; Piu, Paola C.; Micera, Giovanni; Lugliè, Pierfranca; Sanna, Gavino.

In: Journal of Materials Science: Materials in Medicine, Vol. 18, No. 8, 01.08.2007, p. 1521-1527.

Research output: Contribution to journalArticle

Campus, Guglielmo ; Garcia-Godoy, Franklin ; Gaspa, Leonardo ; Panzanelli, Angelo ; Piu, Paola C. ; Micera, Giovanni ; Lugliè, Pierfranca ; Sanna, Gavino. / Dependence of kinetic variables in the short-term release of Hg 2+, Cu2+ and Zn2+ ions into synthetic saliva from an high-copper dental amalgam. In: Journal of Materials Science: Materials in Medicine. 2007 ; Vol. 18, No. 8. pp. 1521-1527.
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