Abstract: A toothbrush head deforming device (10) is provided for a deformable toothbrush (16). The deformable toothbrush (16) for which the device can be used has at least one region (20, 21) of its head (15) weakened so that a sharp and discrete deformation or bending about the weakened region (20, 21) may occur. The deforming device (10) includes means (18, 19) for obstructing the movement of a desired part of the head (15) adjacent a weakened region (20, 21) so that upon application of pressure on the part of the head (15) that does not have its movement obstructed, a sharp and discrete deformation or bending about the weakened region (20, 21) may occur.

Abstract: A toothbrush having an elongated handle part and a head part with bristles projecting there from. A neck part joins the handle part. The head part has at least one region thereof weakened so as to allow deformation in the head part to suit the shape of the user's dental arches.