Abstract: A hand-held rotary brush is provided with a handle, a brush head having a hollow space, a tuft of bristles mounted onto a rotary device which is loosely set within the hollow space of the brush head. When the user manually pushes the brush, a frictional force is created which propels the bristles to catch the irregular surface of the teeth, gaps, causing the rotary device to turn to a circular rotating motion. The construction of the rotary brush can be improved by configured the rotary device with tracks and grooves, which sets within matched grooves and tracks of the hollow space to create a rotating path, that allows the rotary device to rotate within the hollow space of the brush head.

Abstract: A hand held toothbrush with multiple levels of bristles on a rotary pad. When the user manually pushes the brush, there is a force created which propels the bristles to catch the irregular surface of the teeth, gaps, and pockets, causing the rotary pad to turn. The bristle's pattern is designed specially to improve the rotary pad to circular more effectively. The advantage of this invention is that even though the user operates the toothbrush in left and right movement, the bristles on rotary pad, converts left and right motion into circular motion.