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Home > Issues > RetrieveOptimal Irradiation Conditions for Radiopacity Tests of Dental Materials Using General-purpose X-ray Imaging Devices
Journal of Magnetics, Volume 27, Number 4, 31 Dec 2022, Pages 440-446
Hyun-Jin Kim (National Institute of Food and Drug Safety Evaluation), Jun-Seok Lee (National Institute of Food and Drug Safety Evaluation), Dong-hoon Gwak (National Institute of Food and Drug Safety Evaluation), Chang-Won Park (National Institute of Food and Drug Safety Evaluation), Chunil Lim (National Institute of Food and Drug Safety Evaluation), Seung-Youl Lee * 
(National Institute of Food and Drug Safety Evaluation)
(National Institute of Food and Drug Safety Evaluation)
Abstract
This study verifies the feasibility and optimal conditions for using a general-purpose x-ray imaging device with
a relatively large detector and excellent image quality compared to dental x-ray imaging devices according to
international standards. The dental material test specimens were produced in the form of disks from four companies
with different radiopacity, and aluminum step wedges was manufactured according to ISO 13116. In
order to find the optimal irradiation conditions for general X-ray imaging devices, the distance between the target
and the tube was fixed at 700 mm, and the exposure time was fixed at 100 ms. And the tube voltage was 50,
60, 70 kV and the tube current was changed to 40, 80, and 160 mA. As a result, it was sufficient to use generalpurpose
X-ray imaging devices, and the best results were obtained under the optimal conditions of 60 kV and
40 mA.
a relatively large detector and excellent image quality compared to dental x-ray imaging devices according to
international standards. The dental material test specimens were produced in the form of disks from four companies
with different radiopacity, and aluminum step wedges was manufactured according to ISO 13116. In
order to find the optimal irradiation conditions for general X-ray imaging devices, the distance between the target
and the tube was fixed at 700 mm, and the exposure time was fixed at 100 ms. And the tube voltage was 50,
60, 70 kV and the tube current was changed to 40, 80, and 160 mA. As a result, it was sufficient to use generalpurpose
X-ray imaging devices, and the best results were obtained under the optimal conditions of 60 kV and
40 mA.
Keywords: electromagnetic radiation; radiopacity; optimal irradiation condition; international organization for standardization; X-ray imaging devices
DOI: https://doi.org/10.4283/JMAG.2022.27.4.440
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