A toothbrush having a pressure sensor. In one embodiment, the invention can be a toothbrush comprising: a handle； a head； a plurality of tooth cleaning elements mounted to and extending from a front surface of the head； a printed circuit board located within the head, the printed circuit board having a front surface and a rear surface； a pressure sensor operably coupled to a front surface of the printed circuit board, wherein pressure applied to the plurality of tooth cleaning elements is transmitted to the pressure sensor； and a light source attached to a rear surface of the printed circuit board, wherein the light source is illuminated upon the pressure sensor being subjected to a pressure that exceeds a predetermined threshold.
