The purpose of this study was to investigate the trace metal content of dental amalgams used in Korea. Fourteen species of dental amalgams, 6 of which were made in Korea and other 8 were imported, were studied. They were respectively dissolved in
aqua
regia and analyzed the content of maganese, cobalt, bismuth, antimony, lead, iron, nickel, cadmium, indium, zinc, arsenic and beryllium by the method of atomic absorption spectrophotometry.
@ES From the experiment, the following results can be drawn:
@EN 1. The content of the managanese in the dental amalgams was 0.00007% to 0.00320%, and the content of the bismuth was 0.00018% to 0.00560%.
2. The content of the lead in the dental amalgams was 0.00170% to 0.05300%, and the content of the iron was 0.00088% to 0.00510%.
3. The content of the nickel in the dental amalgams was 0.00009% to 0.00330%, and the content of the cadminum 0.00005% to 0.00160%.
4. The content of the zinc in the dental amalgams was 0.00040% to 0.94000%, and the content 0f the arsenic was 0.00050% to 0.00370%.
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