| 摘要 |
The present invention is a toothbrush, made up of three parts: a circular brush head, a rectangular brush head, and a bent handle joining these two brush heads. The rectangular brush is fixed to the handle, whereas the circular brush attachment is attached by screw thread and may be detached. The two brush heads are of different shapes and are oriented in different planes. The angle of the circular brush is to allow brushing of the interior surfaces of the incisors without moving the forearm to an inconvenient position. The two brushes therefore make the toothbrush ergonomically suitable for brushing teeth at various locations in the mouth. |
