A dental lighting device comprising at least one lighting system (1, 100) comprising: a supplementary instrument, at least a first supplementary light source connected to this supplementary instrument and configured to light a predetermined dental zone, over a first spectral range comprised between 370 nm and a reference wavelength, said reference wavelength being comprised between 405 nm and 475 nm, with a first average irradiance value E1, and at least a second supplementary light source connected to this supplementary instrument and configured to light a predetermined dental zone, over a second spectral range comprised between this reference wavelength and 780 nm, with a second average irradiance value E2, the lighting system (1, 100) being configured to function according to at least one first lighting mode, in which the ratio of the first average irradiance value E1 to the second average irradiance value E2 is greater than 1 and less than 12, and the lighting system being also configured to function according to at least one second lighting mode distinct from the first, the device comprising a control system of the first and the second supplementary light sources and a switch coupled to the control system and configured to operate the control system to switch operation of the lighting system between the first lighting mode and the second lighting mode in order to adjust the perception of a user of the device as needed and take into account the specificities of the teeth illuminated, the switching being realised by varying one of the two values of the first average irradiance value E1 and the second average irradiance value E2, whereas the other of these two values remains unchanged, and the lighting system being configured so that the ratio of the first average irradiance value E1 to the second average irradiance value E2 has different values in the first lighting mode and in the second lighting mode respectively. a supplementary instrument, at least a first supplementary light source connected to this supplementary instrument and configured to light a predetermined dental zone, over a first spectral range comprised between 370 nm and a reference wavelength, said reference wavelength being comprised between 405 nm and 475 nm, with a first average irradiance value E1, and at least a second supplementary light source connected to this supplementary instrument and configured to light a predetermined dental zone, over a second spectral range comprised between this reference wavelength and 780 nm, with a second average irradiance value E2, the lighting system (1, 100) being configured to function according to at least one first lighting mode, in which the ratio of the first average irradiance value E1 to the second average irradiance value E2 is greater than 1 and less than 12, and the lighting system being also configured to function according to at least one second lighting mode distinct from the first, the device comprising a control system of the first and the second supplementary light sources and a switch coupled to the control system and configured to operate the control system to switch operation of the lighting system between the first lighting mode and the second lighting mode in order to adjust the perception of a user of the device as needed and take into account the specificities of the teeth illuminated, the switching being realised by varying one of the two values of the first average irradiance value E1 and the second average irradiance value E2, whereas the other of these two values remains unchanged, and the lighting system being configured so that the ratio of the first average irradiance value E1 to the second average irradiance value E2 has different values in the first lighting mode and in the second lighting mode respectively.