DIAGNOdent is a laser cavity detection device that aids the dentist and hygienist in the early detection of caries—even small lesions and incipient caries can be seen through the use of this machine. The benefit of early detection is that it enables the protection and preservation of tooth substance before a cavity enlarges and destroys more of the tooth surface. It also aids in the diagnosis of “hidden” occlusal caries that are difficult to see visually or through x-rays without this valuable aid, as well as in the monitoring of the progression of the caries. This tool has proven to be more than 90 percent accurate in the detection of caries, and has received rave reviews from leading testing facilities and very high grades in patient satisfaction.