Diagnostic Performance Similar for INSIGHT, Ultra-Speed Films

Over many years and several generations of dental radiology films, the Eastman Kodak Company (now Carestream Health) has been extremely successful in increasing the sensitivity of intraoral film while maintaining its diagnostic efficacy. The development of INSIGHT film, an E/F-speed class film, is the latest example of this. A major difference between INSIGHT film and Ultra-speed film (Kodak’s slower D-speed counterpart) is found in the size and shape of the silver halide grains, which are the x-ray–sensitive components of the film emulsion. Compared with the silver halide grains on Ultra-speed film, INSIGHT's grains are larger and have a tabular shape, which gives them a larger cross section for absorption of x-ray photons and a larger surface area over which to develop the exposed grain into a silver residue that becomes the image's radiolucent component. The grains are still quite small, approximately 8 µm in diameter. This compares favorably with the highest resolution CCD or CMO more...