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Figure 1
Optical micrographs [top left of (a) and (b)] and XRF (100 µm resolution) elemental distribution maps for 100 µm-thick horizontal sections of two human teeth filled with amalgam for >20 years. The site of the fillings is on the left side of each tooth. It is noted that some of the enamel from the top of each tooth was lost prior to XRF imaging. Maxima for each element in mg g−1 (assuming a density of 2.1 g cm−3) are given below the element symbol.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 15| Part 2| February 2008| Pages 123-128
doi:10.1107/S0909049507061468
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