| 摘要 |
<p>The toothbrush (1) taking care of the tooth gums, particularly for children, comprising a brush (3) mounting on an elongate handle (2), where an array of bristles (32) is secured to the base (31) of said brush (3), wherein the base (31) of the said brush is conjoined turnable to a longitudinal project (4) of the abovementioned handle (2), having a bore (33) with helix shape groove (5) or wale on its inner surface to which is matched guiding ribs (6) or helix shape canal being on the outer surface of the said project (4) extending 1,15 ... 1,50 times longer than the brush (3).</p> |
