Evaluation of radiation-induced cancer risk to patients undergoing intra-oral and panoramic dental radiographies using experimental measurements and Monte Carlo calculations

Background: Radia on doses associated with the conven onal dental radiographies are rela vely low, but their number is high. Therefore, jus fica on is necessary to ensure that radia on doses to pa ents, par cularly children, are kept as low as reasonably achievable. Materials and Methods: The exposure factors applied for real pa ents in four age groups (5, 10, 15-year-old and adult) were obtained for conven onal dental radiographies, periapical, bitewing, and panoramic. The dose-area product (DAP) values were measured for every dental radiographies. The risk of exposure-induced cancer death (REID) was es mated for every dental radiographies in different age groups and in both genders. Results: The range of the REID values in periapical radiography were 1.3 to 20.9 per ten million for male pa ents, and 1.6 to 28.3 per ten million for female pa ents in different age groups. The range of REID values in bitewing radiography were 1.5 to 11.2 per ten million for male, and 1.9 to 13.2, per ten million for female in different age groups. The mean of REID values in panoramic radiography were 7.32, 4.70, 3.55, and 2.1 per ten million for male pa ents in 5-, 10-, and 15-year-old and adult age groups, respec vely, and were 9.43, 5.86, 4.25 and 2.41 per ten million for female pa ents in 5, 10, 15-year-old and adult age groups, respec vely. Conclusion: In accordance with the results of the present study, the overall risk of cancer from radia on in children was more than adult and in female pa ents is more than male pa ents in dental X-ray