... Bi and U are lower in the pulps of carious teeth than in those of healthy teeth, and the mean concentrations of Mg, Cd, Ba and Pb were higher in the pulps of carious teeth than in those of ... concentrations of Na, Mg, Al, Fe, Ni, Cu, Sr, Cd, Ba, Pb and U and significantly lower concentrations of Mn, Co, As, Se, Mo and Bi. In addition, a comparison of the concentrations of trace elements ... consumption of soil and by dermal absorption. The presence and/ or absence of trace elements in the environment influences their availability to humans.1 For example, in the rural areas of Finland,...