To enable a user to polish the teeth by removing the bristles of a conventional tooth brush from a handle, securing only the bristles, putting the bristles into the mouth and manipulating the bristles by the tongue.

The bristles 1 of the tooth brush which are bundled in small quantities each are lined up apart spaced intervals longitudinally and transversely on both sides of a planar graundsel 2 and are mounted thereto. The bristles 1, of the tooth brush which are bundled in small quantities each are otherwise lined up apart spaced intervals and are mounted at a rod-like groundsel. The user puts the bristles into the mouth and manipulates the bristles with the tongue, by which the rear side of the teeth deep in the mouth, or the like, are easier to be polished and may be polished for a longer time.