Abstract: An improved toothbrush for superior cleaning in the embrazure(74) and occlusal groove(66) areas of the dentition. A handle (28), a neck(26), and a head portion(16) are connected in sequence. The head portion has a non planar shaped face(12). This shape can be mathematically represented by the combination of a sine wave(37) and a parabola(18). Inserted into non planar face(12) are bristles with varying inertia and orientation. Stiffer peak bristles(48) with higher inertia are positioned most adjacent to the dentition promoting better penetration and better strength yielding better cleansing ability in areas of the dention that most need it; interproximal tissue(74) which is most susceptible to gum disease and occusal groove(66) area which is most susceptible to decay. More supple outer row bristles(52) have lower inertia and are in a recessed position which promotes softer contact and protection of the most prominent and delicate areas of the dentition.

Abstract: An improved toothbrush for superior cleaning in the embrazure(74) and occlusal groove(66) areas of the dentition. A handle (28), a neck(26), and a head portion(16) are connected in sequence. The head portion has a non planar shaped face(12). This shape can be mathematically represented by the combination of a sine wave(37) and a parabola(18). Inserted into non planar face(12) are bristles with varying inertia and orientation. Stiffer peak bristles(48) with higher inertia are positioned most adjacent to the dentition promoting better penetration and better strength yielding better cleansing ability in areas of the dention that most need it; interproximal tissue(74) which is most susceptible to gum disease and occusal groove(66) area which is most susceptible to decay. More supple outer row bristles(52) have lower inertia and are in a recessed position which promotes softer contact and protection of the most prominent and delicate areas of the dentition.