An approach is provided a device for an electric toothbrush. The device comprises a brush head, a motor and a controller. The brush head has multiple exposed brush sets. The motor is connected to the brush head which is configured for driving the exposed brush sets. The controller drives the motor with a power module, and sensing a current of the motor which drives the motor in a pulse activated mode when the sensed current exceeds the predetermined current threshold. The pulse activated mode will make the bristle tuft rotary motion in a pulsating bristle tuft motions, and a person can be physically noticed through gums and teeth that reminds the person to release the brush pressure. The controller will disable the motor and warn the person if the brush pressure remains in a predetermined period of time.
