| 摘要 |
The present invention relates to a piece part (100) customized to fit according to a tooth arrangement, used by biting the piece part in a right or a left side of the mouth of a user, while a brush (20) is installed inside the piece part. The bitten piece part covers the teeth of a user over the upper and lower teeth, which hides the teeth from being seen from the outside. A power transmission device (30S) is installed inside of a handle, the gear of which rotates the brush (20) by applying a rotating motion to each brush upon operation. The present invention can increase user convenience by enabling a user to brush the teeth without successive arduous motions; and in addition to the time that can be saved by reducing the motions, all foreign substances on the teeth can be removed without damaging the gums. |
