![]() An optimal exposure, the lowest exposurewhere maximum spatial resolution and contrast/detail detectability were achieved, was determined.Results. Presence of 7 distinct stepsspanning the gray levels from 0 to 255 was used to define the exposure latitude. Gray scale, spatial resolution, and contrast/detail detectability were evaluated. Incident exposures were measured usinga radiation meter. Using a direct current x-ray source and a radiographic phantom, a series of radiographs was made from thelowest exposure time until the sensor saturated. The aim of this study was to compare imaging properties of 20 intraoral digital systems objectively.Study Design. University of Texas Health Science Center at San Antonio, TX, USA Evaluation of image quality parameters of representative intraoraldigital radiographic systemsHema Udupa, BDS, MS,a Peter Mah, DMD, MS,b Stephen B. ![]()
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