| 摘要 |
<p>Toothbrush (1) comprising a plurality of T-shaped bristles (5). Each of the bristles (5) comprises an elongated cleansing head (11, 12) terminated at each end by rounded ends (13, 27) and having between the ends a plurality of cleansing elements (12, 24). The rounded ends (13, 27) are provided for presenting a non-abrasive surface to the subgingival surfaces (17) surrounding a tooth when the cleansing surface of the cleansing head (11, 12) is moved across the surface of the tooth during cleansing of the tooth. In one embodiment, the cleansing elements (12, 24) are conically shaped members (12) terminated by a relatively sharp tip. In another embodiment of the invention the cleansing elements (12, 24) comprise parallel, substantially rectangular members (24) terminated by a relatively sharp edge (25). While flexible, the tip or edge (25) of the cleansing elements (12, 24) of the head (11, 22) generally remains in contact with the surface of the tooth while the head (11, 22) is moved across the surface of the tooth. </p> |
