[ RadSafe ] Dental x-ray doses
robbarish at verizon.net
Mon Jun 6 13:18:19 CDT 2011
NCRP Report 145 on this subject provides the following data for ANSI speed-group E film. The newer group-F speed films approximately halves these exposures.
Bitewing (2 to 4 films) 3 - 14 uSv (depending on kVp and cone length)
Full mouth (14-21 films) 15 - 100 uSv (same dependency)
Panoramic: 6 - 110 uSv
Data for the new cone-beam CT units from Ludlow and Ivanovic in:
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology 2008 Jul;106(1):106-14 show exposures from 70-900 uSv for those units.
Robert Barish, PhD, CHP
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