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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

Campus, Guglielmo Giuseppe and Garcia-Godoy, Franklin and Gaspa, Leonardo and Panzanelli, Angelo and Piu, Paola Costantina and Micera, Giovanni and Lugliè, Pietrina Francesca and Sanna, Gavino (2007) Dependence of kinetic variables in the short-term release of Hg2+, Cu2+ and Zn2+ ions into synthetic saliva from an high-copper dental amalgam. Journal of Materials Science. Materials in Medicine, Vol. 18 (8), p. 1521-1527. eISSN 1573-4838. Article.

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DOI: 10.1007/s10856-007-0124-3

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.

Item Type:Article
ID Code:1458
Status:Published
Refereed:Yes
Uncontrolled Keywords:Synthetic saliva, high-copper dental amalgam, electroanalytical methods,
Subjects:Area 03 - Scienze chimiche > CHIM/03 Chimica generale e inorganica
Area 06 - Scienze mediche > MED/28 Malattie odontostomatologiche
Area 05 - Scienze biologiche > BIO/10 Biochimica
Area 03 - Scienze chimiche > CHIM/01 Chimica analitica
Divisions:001 Università di Sassari > 03 Istituti > Clinica odontoiatrica
001 Università di Sassari > 01 Dipartimenti > Scienze biomediche
001 Università di Sassari > 01 Dipartimenti > Chimica
001 Università di Sassari > 02 Centri > Nanoworld Institute, Nanoscience Laboratories, Sassari Unit
Publisher:Springer Netherlands
eISSN:1573-4838
Deposited On:18 Aug 2009 10:05

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