Time-delay image degradation with dental xeroradiography.
Dental xeroradiography produces high-quality images of dental structures under ideal conditions. However, charged-but-not-developed xeroradiographic photoreceptor plates lose some of their charge with time, a phenomenon termed "dark decay." This investigation assesses the maximum allowable time delay between (1) charging and exposing the photoreceptor, (2) exposing and developing the photoreceptor, and (3) a combination of both delays. Measurements of resolution, background density, broad-area contrast, noise, point discharge artifacts, and diagnostic image quality indicate that photoreceptors should be processed within 5 to 10 minutes of charging in order to avoid substantial image degradation.
D005069:Evaluation Studies as Topic; D008961:Models, Structural; D011856:Radiographic Image Enhancement; D011861:Radiography, Dental / Q000295:instrumentation; D013997:Time Factors; D014986:Xeroradiography / Q000295:instrumentation