| 摘要 |
A first embodiment of a brush to facilitate the cleaning of teeth of human beings wherein the brush head has a plurality of longitudinal projections which non-removably cooperate with mating recesses within the brush handle. A second embodiment of the brush to facilitate the cleaning of teeth wherein the base of the brush cooperates in a tight fitting manner with the brush handle and is ejectable therefrom by a slidable wedge shaped member.
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