When the product originally launched, optical transillumination was taken to a new level with DIFOTI, an instrument designed for the early detection of demineralized enamel. Schneiderman et al.32 in vitro results showing more sensitivity than bitewing radiography for early caries detection using this technology. Keem and Elbaum,33 also using in vitro data, concluded DIFOTI was superior to radiography, based on their position that, using DIFOTI, there is "no ionizing radiation, no film, real-time diagnosis, and higher sensitivity in detection of early lesions not apparent to X-ray."
