| 摘要 |
A toothbrush comprising one u-shaped handle and two head members with several rows of bristles. The head members are able to spread and contract for greater brushing efficiency. In another embodiment, A toothbrush having two head brushes and two arms connected at the opposite end, characterized in that brush head members are normally side by side in the relaxed state, and able to spread apart to cover a wider teeth surface area when finger pressure is applied to a section of the arms.
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