Microleakage in dentistry: new methods for investigating the gaps in biomaterials

Cosmin Sinescu M.D.; Meda Negrutiu; Gheorghe Drăgănescu; Carmen Todea; Dorin Dodenciu; Zeno Florita; Daniela Pop

doi:10.1117/12.764986

27 February 2008 Microleakage in dentistry: new methods for investigating the gaps in biomaterials

Cosmin Sinescu M.D., Meda Negrutiu, Gheorghe Drăgănescu, Carmen Todea, Dorin Dodenciu, Zeno Florita, Daniela Pop

Proceedings Volume 6843, Lasers in Dentistry XIV; 68430P (2008) https://doi.org/10.1117/12.764986
Event: SPIE BiOS, 2008, San Jose, California, United States

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.

Citation Download Citation

Cosmin Sinescu M.D., Meda Negrutiu, Gheorghe Drăgănescu, Carmen Todea, Dorin Dodenciu, Zeno Florita, and Daniela Pop "Microleakage in dentistry: new methods for investigating the gaps in biomaterials", Proc. SPIE 6843, Lasers in Dentistry XIV, 68430P (27 February 2008); https://doi.org/10.1117/12.764986

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