TODENTJ-25-03-2019_TODENTJ-11-690 1553507238 Bentham Open doi@benthamopen.net Bentham Open The Open Dentistry Journal TODENTJ 1874-2106 12 29 2017 11 1 Amir Eskandarloo Arman Yousefi Setareh Soheili Karim Ghazikhanloo Payam Amini Haniyeh Mohammadpoor Background: Nowadays, digital radiography is widely used in dental practice. One of the most common types is Photo Stimulated Phosphor Plate (PSP). Objective: The aims of this experimental study were to evaluate the impacts of different combinations of storage conditions and varying delays in reading of digital images captured using PSPs. Methods: Standardized images of a step wedges were obtained using PSPs from the Digora digital systems. Plates were exposed and immediately scanned to produce the baseline gold standard. The plates were re-exposed and stored in four different storage conditions: white light, yellow light, natural light environment and dark room, then scanned after 10 and 30 minutes and 4 and 8 hours. Objective analysis was conducted by density measurements and the data were analyzed statistically using GEE test. Subjective analysis was performed by two oral and maxillofacial radiologists and the results were analyzed using McNemar’s test. Results: The results from GEE analysis show that in the natural light environment, the densities in 10 minutes did not differ from the baseline. The mean densities decreased significantly during the time in all environments. The mean densities in step 2 for the dark room environment decreased with a slighter slope in comparison to yellow environment significantly. Conclusion: PSP images showed significant decrease in the density in plates scanned for 10 minutes or longer after exposure which may not be detected clinically. The yellow light environment had a different impact on the quality of PSP images. The spatial resolution did not change significantly with time. 12 29 2017 690 700 TODENTJ-11-690 1 10.2174/crossmark_policy opendentistryjournal.com benthamopen.com true Peer Reviewed Single blind Checked with iThenticate 2017-05-30 2017-10-13 2017-11-27 2017-12-29 https://creativecommons.org/licenses/by/4.0/legalcode 10.2174/1874210601711010690 1553507238 https://opendentistryjournal.com/VOLUME/11/PAGE/690/ https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.pdf https://opendentistryjournal.com/contents/volumes/V11/TODENTJ-11-690/TODENTJ-11-690.xml Dental Med Res Terauchi T. 33 68 2013 10.7881/dentalmedres.33.68 Terauchi T, Matsuda Y, Araki K, Seki K, Okano T. 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