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Updated: Nov 3, 2025

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
EFFECTIVE DOSES AND RADIATION RISKS FROM COMMON DENTAL RADIOGRAPHIC, PANORAMIC AND CBCT EXAMINATIONS
1Laboratory of radiation hygiene of medical facilities, St-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Mira st. 8, St-Petersburg 197101, Russia.
Abstract:
This study was aimed at the estimation of the effective doses and radiation risks from dental X-ray examinations based on the data collection in St. Petersburg and the Leningrad Region. The range of mean values of effective doses for intraoral examinations on the X-ray units with film detectors was from 3.5 to 8.2 μSv and for the units with digital detectors-from 1.2 to 2.5 μSv. The mean effective doses for panoramic examinations were 22.9 μSv and for cone-beam computed tomography (CBCT)-530.6 μSv, respectively. The highest detriment-adjusted lifetime risk values were estimated for the 20-24-year-old age group: 40.8 × 10-6 in females and 32.7 × 10-6 in males for CBCT. Effective doses in St. Petersburg and Leningrad region were comparable or higher compared with the published data.
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