| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Pessanha, Sofia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Maternal methylmercury exposure during early-life periods adversely affects mature enamel structure of offspring rats at human exposure levelscitations
- 2022Characterization of binders and pigments using an integrated analytical approach: Application to wooden reliefs created by Vasko Lipovac in the 1970scitations
- 2021Investigation of inks, pigments and paper in four Moroccan illuminated manuscripts dated to the eighteenth centurycitations
- 2020Evaluation of the effect of fluorinated tooth bleaching products using polarized Raman microscopy and particle induced gamma-ray emissioncitations
- 2019Josefa d' Óbidos workshop from panel to canvas. Multianalytical approach to materials and technical evolution of the most significant Portuguese painting workshop of the 17 th centurycitations
- 2016Distribution of toxic elements in teeth treated with amalgam using mu-energy dispersive X-ray fluorescencecitations
- 2016Jose de Escovar at the Chapel of the Souls: Technical and material study of a 1603 panel painting
- 2016Artificial aging paper to assess long-term effects of conservative treatment. Monitoring by infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), and energy dispersive X-ray fluorescence (EDXRF)citations
- 2015Microscopy and X-Ray Spectroscopy Analyses for assessment gilding and silvering techniques of Portuguese illuminated manuscriptscitations
- 2015Nondestructive analysis of Portuguese “dinheiros” using XRF: overcoming patina constraintscitations
- 2009Comparison of matrix effects on portable and stationary XRF spectrometers for cultural heritage samplescitations
- 2009Efficacy of Waterborne Polyurethane to Prevent the Enzymatic Attack on Paper-Based Materialscitations
- 2008Analysis of a coloured Dutch map from the eighteenth centurycitations
Places of action
| Organizations | Location | People |
|---|
article
Distribution of toxic elements in teeth treated with amalgam using mu-energy dispersive X-ray fluorescence
Abstract
<p>Over the years, the presence of mercury in amalgam fillings has raised some safety concerns. Amalgam is one of the most commonly used tooth fillings and contains approximately 50% of elemental mercury and 50% of other metals, mostly silver, tin and copper. Amalgam can release small amounts of mercury vapor over time, and patients can absorb these vapors by inhaling or ingesting them. In this study, 10 human teeth treated with dental amalgam were analyzed using energy dispersive X-ray fluorescence (EDXRF) to study the diffusion of its constituents, Ag, Cu, Sn and Hg. The used EDXRF setup, makes use of a polycapillary lens to focus radiation up to 25 mu m allowing the mapping of the elemental distribution in the samples. Quantification was performed using the inbuilt software based on the Fundamental Parameters method for bulk samples, considering a hydroxyapatite matrix.</p><p>The teeth were longitudinally cut and each slice was scanned from the surface enamel to the inner region (dentin and pulp cavity). Mercury concentration profiles show strong levels of this element close to the amalgam region, decreasing significantly in the dentin, and increasing again up to 40,000 mu g.g(-1) in the cavity were the pulp used to exist when the tooth was vital. (C) 2016 Elsevier B.V. All rights reserved.</p>