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Abstract
Introduction: Dental X-rays are one of the most frequent medical exposures to ionizing radiation. The use of
ionizing radiation is associated with a probable risk of triggering adverse biological effects and possible damage to the patient’s health. To prevent patients from receiving unnecessarily high doses during these exposures, the International Commission on Radiological Protection recommends the use of diagnostic reference levels as an effective tool to help optimize radiological protection for patients. Objective: To estimate diagnostic reference levels in intraoral and panoramic dental radiography in the city of Bogotá, D.C. Methodology: In 68 periapical dental radiography equipment and 23 panoramic radiography equipment, the radiographic exposure parameters of the equipment and image quality were evaluated. The dosimetric magnitudes of incident air kerma (Ka,i) in intraoral equipment for the radiography of a maxillary molar of an adult and the air kerma-area product (PKA) in panoramic radiography equipment in a standard adult examination were estimated. Results: The third quartile of the incident air kerma distribution for intraoral radiography was 3,3 mGy and the air kerma-area product for panoramic radiography was 103,9 mGy·cm2. In the frequency distribution of incident air kerma for intraoral radiography, the highest percentage of equipment was in the range of 2,0–3,0 mGy, and in the frequency distribution of the air kermaarea product for equipment of panoramic radiography, the highest percentage of the equipment was in the range of 60 to 80 mGy cm2 . Discussion: The institutions considered to establish the diagnostic reference levels in this study had an adequate quality of the image evaluated with a dental phantom, but the variations in radiation doses between institutions indicate the need to implement tools that contribute to the optimization of the practices. Conclusions: It is recommended to use the values of the diagnostic reference levels found in this research to optimize radiological protection in dental radiological exposures, and it is expected that this study will serve as a basis for further research in other cities of the country.
References
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Copyright (c) 2023 Harley Alejo-Martínez, Alexandra Peña-Rodríguez, Andrés Camilo Sevilla-Moreno, Emeterio Cruz-Salazar, Devi Nereida Puerto-Jiménez