| 摘要 |
A curved, solid toothbrush connects the divided handle units(3)(4) with the toothbrush units(1)(2) to form the inside and outside brushes, which also forms curved planes for inside and outside brushing; a curved plane of the tooth(c) and a curved plane between the teeth on the toothbrush (1A)(2B). The toothbrush is conveniently assembled and disassembled by forming poles(1-1)(2-1) and inserting parts(1-2)(2-2) on the toothbrush units(1)(2) for the inside and outside brushing, and forming inserting holes(3-3)(4-3), inserting grooves(3-2)(4-2), and by connecting the prominent and depressive parts(3-1)(4-1) on the divided handle units(3)(4).
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