| 摘要 |
The short brush sections (9) are laterally set back in relation to the long brush sections (7). The long brush sections are located in the central area in one plane (11) and along the edges (15) form a bent surface or a tilted plane. The ends of the short brush sections (9) in the central area locate in one plane (13) which is at the height of the shortest brushes of the long brush sections. At least one short brush section is made of harder and thicker bristles than the long brush sections. USE/ADVANTAGE - A toothbrush which facilitates the cleaning of spaces between teeth without undue pressure being exerted on the gums.
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