![]() The data were grouped in 3 classes according to the number of exposures (20-80 100-140 160-200), and were analysed using variance analysis and chi(2) tests. All radiographic images were subtracted from the first digital image (baseline) and the mean grey values (MGVs) of the subtracted images were established using software. Subsequent digital images of the plates were obtained after 20, 40, 60, 80, 100, 120, 140, 160, 180 and 200 exposures. These were recorded as the baseline images. The aim of this study was to determine the service life of PSPs in a clinical setting.įive unused PSPs were exposed with a conventional X-ray device and converted into digital images with Digora Optime (Soredex, Milwaukee, WI). Charge coupled devices (CCDs) and photostimulable phosphor plates (PSPs) are currently in use for dental imaging however, the longevity of PSPs in dental practice is not yet established. Digital radiography has become a useful tool in daily dental practice due to the advances in imaging technologies. ![]()
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