| 摘要 |
<p>A toothbrush designed to enable horizontal brushing of the contact line between the teeth and the gums, which is composed of a handle and a brush. One end of the handle has a protruding arm, which constitutes an extension of the handle's longitudinal axis and ends in a ball. The brush is convex-concave/bean shaped with protruding bristles on one side and a hollow socket attached to the other side; the socket has an opening that faces the handle. To attach the brush to the handle, the ball is inserted into the cavity in the socket, so that a ball and socket joint is formed that enables the user to spatially change the angle between the brush and the handle.</p> |
