DIAGNOdent device emits red light from a specific laser diode that induces fluorescence of bacterial porphyrins. The intensity of caries fluorescence is correlated with the intensity of bacterial contamination, i.e., with lesion depth. DIAGNOdent has been intended to act as a second opinion device in case of questionable occlusal and proximal surfaces and to monitor caries lesions. The system is useful in interproximal caries, smooth caries and occlusal caries. It is not reliable for detection of caries around restorations and limited data is available on its use on root caries.
KeywordsDIAGNOdent Red light Fluorescence Bacterial porphyrins Caries detection