Comparison of xeroradiographs with occlusal and screen films

Since the advent of xeroradiography, many questions have been asked about its image quality and speed relative to that of periapical and screen films. The experiment reported here measures the "resolution" of occlusal film, screen film, and xeroradiographs at different k Vp and mAs settings. The occlusal film was used instead of the periapical film because it has the same speed as a periapical film and is sufficiently large for the placement of the measuring instrument (a test pattern).