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ORIGINAL PAPER
 
CC BY-NC 3.0 Polska
 
 

Evaluation of dental X-ray apparatus in terms of patient exposure to ionizing radiation

Jerzy Olszewski 1  ,  
 
1
Instytut Medycyny Pracy im. prof. J. Nofera / Nofer Institute of Occupational Medicine, Łódź, Poland (Zakład Ochrony Radiologicznej / Department of Radiological Protection)
2
Uniwersytet Łódzki / University of Lodz, Łódź, Poland (Wydział Fizyki i Informatyki Stosowanej, Katedra Fizyki Jądrowej i Bezpieczeństwa Radiacyjnego / Faculty of Physics and Applied Informatics, Department of Nuclear Physics and Radiation Safety)
Med Pr 2017;68(4):491–496
KEYWORDS:
TOPICS:
ABSTRACT:
Background: The use of X-ray in dental procedures causes exposure of the patient to ionizing radiation. This exposure depends primarily on the parameters used in tooth examination. The aim of the study was to determine the patients exposure and to assess the technical condition of X-ray tubes. Material and Methods: Seventeen hundred dental offices were covered by the questionnaire survey and 740 questionnaires were sent back. Direct measurements were performed in 100 units by using the thermoluminescent detectors and X-ray films. Results: The results showed that the most commonly used exposure time is 0.22±0.16 s. The average entrance dose for the parameters used most commonly by dentists is 1.7±1.4 mGy. The average efficiency of X-ray tube estimated on the basis of exposures is 46.5±23.7 μGy/mAs. Conclusions: The study results indicate that the vast majority of X-ray tubes meet the requirements specified in the binding regulations. Med Pr 2017;67(4):491–496
CORRESPONDING AUTHOR:
Jerzy Olszewski   
Instytut Medycyny Pracy im. prof. J. Nofera, Zakład Ochrony Radiologicznej, ul. św. Teresy 8, 91-348 Łódź
eISSN:2353-1339
ISSN:0465-5893