| 摘要 |
<p>A toothbrush includes a handle ( 2 ), a head ( 4 ) mounting bristles ( 5 ) and a connecting portion ( 3 ). The handle ( 2 ) and the connecting portion ( 3 ) extend from the head ( 4 ) in the direction opposite to the direction of the bristles ( 5 ). The toothbrush ( 1 ) also includes a connector ( 9 ) which allows the head ( 4 ) to be changed. An alternative embodiment ( 22 ) of the toothbrush includes a roller ( 26 ) having bristles ( 27 ) and being rotatably mounted on the head ( 25 ), an electric motor and a transmission element that connects the motor to the roller ( 26 ).</p> |
