| 摘要 |
Toothbrush having a tweezerlike handle portion (3) and two rolls (5), which are rotatable on axes (6) angled in relation to the handle portion. The rolls are provided with bristles placed in rows (7, 8), which are parallel to the axes. Each second row is short in the radial direction, about 2 mm, and each second bristle row is long, about 5 mm. The distance (A) between the tips of each long row is slightly less than the width of the premolars, e.g. about 4 to 8 mm. |
