REPLACEABLE BRUSH HEAD FOR TOOTHBRUSH

A replaceable brush head includes an upper surface, an outer perimeter edge, and a plurality of tufts. The upper surface includes a plurality of bristle tufts. The lower surface includes an outwardly extending knock-out button. The outer perimeter edge includes at least one protrusion. The replaceable brush head may be installed in a toothbrush body that includes a head portion having a recess sized to fit the replaceable brush head with a knock-out opening for the knock-out button and at least one channel for coupling to the at least one protrusion. The replaceable brush head can be removed from the toothbrush assembly by applying a force to the knock-out button in the direction of the tuft plate.