| 摘要 |
[Problem] To provide an electric toothbrush capable of enhancing cleaning properties between teeth while adequately maintaining cleaning properties on a tooth surface or tooth neck. [Solution] An electric toothbrush (1) having a brush part (2) in which bristle bundles (14) are implanted in implantation holes (13) of an implantation base (12), a handle part (3) as a grip for operating the brush part (12), and a vibration generating means (5) housed in the handle part (3), the vibration generating means (5) for rotating an eccentric weight (32) about an axis aligned with a length direction of the handle part (3) and causing the brush part (2) to vibrate, wherein level-difference bristle bundles (14A) implanted in the implantation holes (13) so that a level difference (H) is formed in a distal-end part thereof are provided as the bristle bundles (14). |
