A toothbrush operable by a user has a handle having a distal end, a head
having a proximal end extending from said handle's distal end and
bristles extending generally in a first direction designated "forward".
The head has a first orientation relative to the handle when the head is
relaxed, the head being pivotable relative to said handle out of the
first orientation to a second orientation rearward of the first
orientation, when a force greater than a predetermined threshold level is
applied to the head in a direction generally opposite the first
direction. The head remains out of the first orientation until it is
manually returned by the user to the first orientation.