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Proceedings Paper

Microleakage in dentistry: new methods for investigating the gaps in biomaterials
Author(s): Cosmin Sinescu; Meda Negrutiu; Gheorghe Drăgănescu; Carmen Todea; Dorin Dodenciu; Zeno Florita; Daniela Pop
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Paper Abstract

The method of laser micro spectral analysis is a method of punctual method of analysis, which permits to investigate small quantity of material, around 0.1 μg. This method permits to establish the content of atoms and molecules. The method permits to make semi-quantitative and quantitative analysis. By this method it is possible to establish trace elements, with concentration of order ppm (parts per million). For atomic UV spectral analysis, intense spectra are produced by the transitions of the metals. The halogens have poor spectra in the UV region. The method is low cost and can be made also with devices adapted for this kind of measurement. By this method we established the curves of concentration distribution for Ca, Mg, P and Zn. These distributions are different of the direction amalgam-nerve duct and on a perpendicular direction to the direction amalgam-nerve duct. We must underline that the method of laser micro spectral analysis gives the possibility to measure the infiltration of due substances in the porous regions of filled tooth.

Paper Details

Date Published: 27 February 2008
PDF: 10 pages
Proc. SPIE 6843, Lasers in Dentistry XIV, 68430P (27 February 2008); doi: 10.1117/12.764986
Show Author Affiliations
Cosmin Sinescu, Univ. of Medicine and Pharmacy Victor Babeş, Timişoara (Romania)
Meda Negrutiu, Univ. of Medicine and Pharmacy Victor Babeş, Timişoara (Romania)
Gheorghe Drăgănescu, Politehnica Univ. Timişoara (Romania)
Carmen Todea, Univ. of Medicine and Pharmacy Victor Babeş, Timişoara (Romania)
Dorin Dodenciu, Univ. of Medicine and Pharmacy Victor Babeş, Timişoara (Romania)
Zeno Florita, Univ. of Medicine and Pharmacy Victor Babeş, Timişoara (Romania)
Daniela Pop, Univ. of Medicine and Pharmacy Victor Babeş, Timişoara (Romania)


Published in SPIE Proceedings Vol. 6843:
Lasers in Dentistry XIV
Peter Rechmann; Daniel Fried, Editor(s)

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