MANUAL TOOTH BRUSH Russian patent published in 2008 - IPC A46B9/04 

FIELD: personal effects.

SUBSTANCE: tooth brush has head with a free front end and back portion with a following handle. At least one bundle of bristle, as the first group, is located on the free front end and moves from the surface of the tooth brush head, and the second group of bundles follows the first. From one side this group consists of several bristle bundles, protruding from the surface of the head and arranged side by side on a circular surface, at that they are arranged in the direction of the circumference of the circular surface with incline at an angle (f) to the surface of the head; while from another side this group consists of at least one another bundle, protruding from the surface of the head and placed into bristle bundles, arranged on the circular surface. The third group of bristle bundles follows the second group in the direction of a reverse portion, and this group consists of several bundles of bristle protruding from the surface and arranged side by side on another circular surface. The bundles of bristle of the third group are inclined in the direction of circumference reversed to the direction of the second group bundles of bristle.

EFFECT: high grade brushing of teeth and interdentium is achieved.

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