| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that a toothbrush after use is likely to become a breeding ground for saprophyte since food debris, dental plaque, etc. are caught on a bristle tuft or between bristle tufts, and dental plaque in the neighborhood of a bristle implanting surface, in particular, is difficult to clean up even if cleaning is performed by using two toothbrushes and brushing them each other.SOLUTION: There is provided a brush dedicated for cleaning having high brush bristles which are more than 10 mm high, are hard and have low density as compared with those of an ordinary brush, in which dental plaque in the neighborhood of a bristle implanting surface is easy to rake out. A head part is rectangle-shaped or square-shaped, and is caused to be orthogonal to a handle so as to improve workability.</p> |
