| 摘要 |
PROBLEM TO BE SOLVED: To eliminate such problems that when bacterial plaque is removed with a dental floss, surely closely joining the floss yarn to the tooth surface is difficult, and the effect of the bacterial plaque removal is greatly changed depending on the method of a user or the standing state of teeth. SOLUTION: The floss yarn is closely joined to the tooth surface by utilizing the elasticity of a holder main body, and bacterial plaque is removed.
|
