The combination with RGB LEDs enables to create chromatic scenes when the dentist is not working, leaving the patient relaxing thanks to the benefits of the chromotherapy. The light has influence on feelings and physical state, different wavelength are perceived by our brain as different colors. The chromotherapy is a supplementary therapy, that can support other scientific therapies: colors help you to recover harmony and psychophysical equilibrium. Colors are connected to some special properties: GREEN is the symbol of harmony, nature, it spreads harmony and quiet; RED ; il ROSSO is the symbol of fire and blood, it is connected to the strength, life and passion; BLUE is the opposite of red, it has a relaxing effect, it calms down and refreshes; YELLOW helps the brain concentration, it seems to be able to spread happiness, joyful and protection.