Document Type
Article
Publication Date
3-19-2011
Abstract
SilverFil (Silverfildental Products, Malaysia) is another commercially available dental amalgam; however it is based on silver and mercury only. It is claimed that upon amalgamation, there is no excess mercury in SilverFil. Objectives: The objectives of this study were to determine the structural state and chemical composition of the starting materials and presence of mercury in the resulting amalgam. Methods: All the starting materials of SilverFil and the SilverFil amalgam specimens were characterize using Field Emission Scanning Electron Microscopy (FESEM-EDX), X-Ray Diffraction (XRD) and X-Ray Photoelectron Spectroscopy (XPS). Results: The FESEM images of the amalgam shows silver-mercury (Ag-Hg) clusters. The elemental mapping of SilverFilTM shows good distribution of Ag and Hg. The EDX analysis showed that all the chemical composition of the starting materials contain no and consist of only Ag and Hg. These results agreed concurred with the XRD analysis. The XRD analysis also revealed that the chemical composition of SilverFil is similar to naturally occuring mineral called �Moschellandsbergite�. The XPS analysis showed that there was no free mercury (Hg0) present in the starting material. When the resulting amalgam was analysed, the binding energy of Hg(4f) were 101.8eV and 100.6eV confirming the presence of bonded mercury to oxygen (HgO). Conclusion: It can be concluded that there was no free mercury present in SilverFil.
Keywords
Amalgams, Dental Materials, Mercury, Xps, Self-Repair, Culture-Conditions, Composite Resin, Dental Pulp Stem Cell, Functionally Graded Design, Multi Layered Post, Functionally Graded Dental Post, Soft Skills, Clinical Pairing, Dental Pulp Stromal Cells, Long-Term Expansion
Divisions
ConservativeDentistry
Publication Title
The Preliminary Program for IADR/AADR/CADR 89th General Session and Exhibition (March 16-19, 2011)
Publisher
International Association for Dental Research
Additional Information
Associate Prof. Dr. Noor Hayaty Binti Abu Kasim Department of Conservative Dentistry, Faculty of Dentistry Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA