#$%^&*AU2020210139A120200813.pdf#####ABSTRACT OF THE DISCLOSURE An electric toothbrush, comprising: a body comprising a gripping part and a stem extending from the gripping part； a brush unit detachably coupled to the body, the brush unit having an outer surface including a front surface having a plurality of tooth cleaning elements extending therefrom； a motor located within the body and operably coupled to an eccentric shaft to oscillate the brush unit； a light emitting element configured to emit light from the brush unit； a light receiving element configured to receive reflected light of the light emitted from the light emitting element； a fluid dispensing system comprising a reservoir for storing a fluid and a fluid conduit extending from the reservoir to an outlet； a controller operably coupled to the motor, the light emitting element, the light receiving element, and the fluid dispensing system, the controller receiving data indicative of an amount of the reflected light received by the light receiving element； and wherein the controller controls operation of the fluid dispensing system based on the amount of the reflected light detected by the light receiving element. Abstract Figure - Figure 22/13 C CNI LL - --J Cco CI
