Abstract
Composites used in dentistry bring into the organism elements that may induce adverse biological effects. We applied 3 MeV proton particle-induced X-ray emission (PIXE) and photon-excited X-ray fluorescence (XRF) in the qualitative analysis of 10 dental composites and we tested copper-beam elastic recoil detection analysis (ERDA) on one material. PIXE, and partly XRF, evidenced Si, K, Ca, Ti, V, Cr, Fe, Mn, Ni, Cu, Zn, Sr, Ag, Zr, Cd, In, Ba, Yb, Y, Ho, Hf and Pb, many of them at trace levels, while ERDA detected H, B, C, N, O, F, Na, Al and Si.
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