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ePaper created 2013-06-27, 10:53:45 | version 1.22.16
www.dentistx.com American Dental Association ADA 2004 X ADA National Council on Radiation Protection and Measurements NCRP ADA ——Sharon Brooks “ ” NCRP 0.2% 3.6 ADA X 24 18713 16-64 18% 36% 35 19% 35-49 19% 46% 50-64 32% 7% 19% 17% ADA 2012 12 “ ” “ ” “ ” “ ” “ ” 2013-1-30