We use a diagnostic laser in our practice, the Diagnodent. This small device looks like a small red light that we shine on the tooth structure, primarily on the grooves, pits and fissures. It measures the density/decalcification in the enamel and provides feed back with a numerical reading that can be compared visit to visit, and with an audible sound that becomes faster and more high pitched as the degree of breakdown in the enamel increase.
This device is ideal for young children who may not be comfortable with a radiograph, as well as for pregnant women. It provides a great tool to measure changes in the enamel visit to visit.