Diagnodent is a revolutionary way to detect and find cavities. Diagnodent uses a laser diode to inspect the patient’s teeth. The light-emitting device is shined on the teeth and then gives a digital readout the dentist is able to use to detect decay. It is able to identify the tiniest bit of tooth decay before it becomes a major problem. Detecting decay early means that fillings can be shallower and simpler and more of the tooth structure can be preserved. And, because Diagnodent uses only light energy, not x-rays, it’s safe to use at each office visit.