Uranium concentrations of porcelain teeth were determined using the fission track method. The uranium contents of each brand range 0.33-10 ppm,* 0.69-81 ppm,§ 2.5-14 ppm, † and 11-205 ppm, # respectively. In addition, corresponding dose equivalents to the oral mucosa were calculated.
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References
1.
Icrp: Recommendations of the ICRP. ICRP Publication 9, Oxford: Pergamon Press, 1965.
2.
O'Riordan, M.C. and Hunt, G.J.: Radioactive Fluorescers in Dental Porcelains, National Radiological Protection Board Report25, 1974.
3.
Thompson, D.L.: Uranium in Dental Porcelain, U.S. Department of Health, Education, and Welfare Publication (FDA)76-8061, 1976.
4.
U.S.NRC: Code of Federal Regulations, Title 10, Chapter 1, Part 40.13(b), 1975.
5.
Sairenji, E. ; Moriwaki, K.; Shimizu, M.; Noguchi, K.; Anzai, I.; and Ikeda, N.: Determination of Uranium Content in Dental Porcelains by Means of the Fission Track Method and Estimation of Radiation Dose to Oral Mucosa by Radioactive Elements, Hoken Buturi14(2):95-104, 1979.
6.
Icrp: Recommendations of the ICRP. ICRP Publication 26, Oxford: Pergamon Press, 1977.
7.
Shimizu, M.; Moriwaki, K.; and Sairenji, E.: University of Tokyo Research Center for Nuclear Science and Technology Report5: 8-10, 1977.
