High-Tech Laser Caries Detection Aid that Measures photological changes in tooth structure caused by caries. It is especially useful for pit and fissure areas, even when the outer tooth surface is intact. Detects developing lesions or subsurface lesions that are undiagnosed by conventional examination methods. Avoids “exploratory” hollowing out of healthy teeth. Uses light energy versus radiation with no danger posed to patient, operator, or staff.