title: A study of the quality of duplicated radiographs.
abstract: The resolution, contrast, and clinical appearance of radiographs and duplicate radiographs made with two types of duplicating film were compared. Duplicating conditions evaluated were type and shape of light, light-film distance, type of exposure surface, and developer temperature. Major observations were as follows: both Kodak and DuPont films produced clinically acceptable duplicates; Kodak film was faster; DuPont film responded better in incandescent photoflood light than Kodak film; clear glass with appropriate light-film distance was the best exposure surface.
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods; D003308:Copying Processes; D003748:Dental Equipment; D005069:Evaluation Studies as Topic; D005453:Fluorescence; D008029:Lighting; D011856:Radiographic Image Enhancement; D011861:Radiography, Dental / Q000295:instrumentation; D013997:Time Factors; D014466:Ultraviolet Rays