Abstract: A toothbrush having a curvilinear open loop shaped handle that extends through an arc of approximately 270 degrees. The handle of this toothbrush also includes a head disposed at one end thereof. The head has a plurality of bristles extending radially outwardly from the center of said open loop shape handle. In some forms of the invention the toothbrush is dimensioned and configured such that an imaginary square having all sides equal extends around the toothbrush will substantially abut the free end of the bristles on one side thereof and portions of the curvilinear handle on the other three sides of said imaginary square.