Toothbrush having an efficacious bristle pattern

An enhanced cleaning toothbrush comprising:

• (a) an elongated handle (12);
• (b) an elongated head (14) connected to and extending from the handle (12), the head (14) ending in a toe (30) distal from the handle(12),
• (c) the elongated head (14) having a face (22) on one side thereof and a longitudinal axis (A—A) therethrough;
• (d) a plurality of flexible bristle tufts, each with one end secured to said face (22) and the other, free end, extending therefrom;
• (e) said head (14) being divided, by two rows of bristle tufts (24, 26) extending in height at least 1.0 cm above the face (22), which rows are oriented generally transverse to the longitudinal axis (A—A) and extend substantially across the toothbrush head (14), into a first section of bristle tufts (16) adjacent to the toe (30) and having a curved trim profile with a first radius of curvature (R1) convex to the toe (30);
• a second section of bristle tufts (18) located between the two rows of bristle tufts (24, 26) having a curved trim profile with a second radius of curvature (R2) convex to the brush face (22), and having an inner grouping of bristle tufts (28) located central to the head 14, which inner grouping (28) is acutely angled toward either the toe (30) or handle end of the head 14, and having peripheral to said inner grouping (28), outer groupings of bristle tufts (34) located adjacent to each side of the brush head (14), which outer groupings (34) are acutely angled toward the opposite end of the brush head than the inner grouping (28);
• and a third section of bristle tufts (20) located adjacent to the handle (12) and having a curved trim profile with a third radius of curvature (R3) convex to the handle (12);
• (f) the two rows of bristle tufts (24, 26) being spaced at least 1.2 cm apart.