An electric toothbrush system may include a brush head, an adapter, and a personal computing device. The brush head may have a plurality of bristles. The adapter may include an actuator, a stem extending from the actuator, and a connector electrically connected to the actuator. The personal computing device may contain a power source. The stem may be configured to couple with the brush head, and the actuator may be configured to receive power from the personal computing device through the connector and actuate the brush head via the stem.
