This smart sonic toothbrush expands the spectrum of tooth cleaning by means of an app to a variety of functions. Personal data as well as individual tooth-brushing routines and cleaning plans can be stored and retrieved via a smartphone. The cleaning functions “clean”, “whitening” and “massage” can be applied in four different strengths and combined with the desired tooth-brushing time. The brush head features a diamond shape that even cleans hard-to-reach areas.