Optimal Irradiation Conditions for Radiopacity Tests of Dental Materials Using General-purpose X-ray Imaging Devices

다국어 초록 (Multilingual 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.