Abstract
Purpose Evaluation of the doses to patients obtained during intraoral dental X-ray radiography procedure. Methods Gafchromic films were used for dose measurements in homemade PMMA head phantom reconstructed from CT scans of real patients. The absorbed doses to organs were evaluated at distinguished locations corresponding to the locations of certain organs in the head phantom. For the recalculation of the effective doses tissue weighting factors were applied. Results It was found, that the doses were ∼60% lower applying digital image detectors as compared to the analogue dental X-ray equipment. Absorbed doses measured using analogue technique was noticeable higher for the salivary glands and oral mucosa. Recalculated effective dose varied from the 0.5 to 5.5 μSv depending on the technical irradiation parameters and field size/collimation. Conclusions Performed investigation has shown statistically significant dose variations during intraoral dental X-ray procedure, that were related to the technical parameters of irradiation. This indicated an important issue of possible patient’s dose reduction in intraoral dental X-ray radiography, which could be managed when selecting appropriate set of technical parameters for the examination. Some recommendations regarding patient’s dose reduction are also provided.
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