| 摘要 |
Toothbrushes are taught that may included a main body having a brush portion provided with brush bristles and protrusions for oscillating the brush bristles in a direction perpendicular to a longitudinal axis of the main body. For example, the protrusions may be provided on the main body and on a sliding member so as to generate oscillations when the protrusions slide relative to each other. In addition or in the alternative, an electric motor may be coupled to the sliding member to reciprocally move the sliding member along the longitudinal axis of the main body. Teeth may be brushed by holding the main body in a substantial fixed position with respect to the teeth and simultaneously sliding the sliding member along the shaft of the main body in order to cause the brush portion to oscillate in the direction perpendicular to the teeth.
|
