Mercury Release From A Sn-Cu-Zn Free Amalgam

Authors

  • J. L. Lui Department of Conservative Dentistry, Faculty of Dentistry, University of Malaya
  • S. L. Tong Department of Chemistry, Faculty of Science, University of Malaya
  • S. K. Teh Department of Mechanical Engineering, Faculty of Engineering, University of Malaya

DOI:

https://doi.org/10.22452/adum.vol1no1.1

Abstract

The mercury controversy related to dental amalgam is still continuing. In Malaysia, part of, this controversy has been attributed to a recently - introduced dental amalgam claimed to be non-mercury releasing and causing no mercury toxicity. The purpose of this study was to investigate whether this amalgam, Composil, was indeed non-mercury releasing. Six specimens each of Composil and a control (GS-80) were incubated at 3TC in deionised-distilled water. The daily mercury release was determined over a four-week study period using the stationary cold-vapour atomic absorption spectrometric method. The mean mercury release of Composil was 30.9 Ilg/cm2/ 24hr whilst that of GS-80 was 0.9 Ilg/cm2124hr and the difference was found to be highly significant (P < 0.00l). Results of this study therefore did not substantiate the manufacturer's claim. The release of mercury from amalgam restorations and their implications in clinical practice were also discussed.

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Published

1994-12-30

Issue

Vol. 1 No. 1 (1994)

Section

Original/Research Article

License

  1. The Faculty of Dentistry, Universiti Malaya holds the copyright of the published manuscript including all its components such as supplementary information, graphical contents and raw data without any restrictions.
  2. The author grant the Faculty of Dentistry, University of Malaya assignable and sub-licensable right, unlimited in time and territory, to copy-edit, reproduce, publish, distribute, transmit, make available and store the Article, including abstracts thereof, in all forms of media of expression now known or developed in the future, including pre- and reprints, translations, photographic reproductions and extensions.
  3. After acceptance for publication in Ann Dent UM, the author(s) have the right to use any of its components in whole or in part for academic purposes such as, presentation in scientific conferences and seminars.