| 摘要 |
PROBLEM TO BE SOLVED: To provide an interdental brush which significantly improves the cushioning effect of an elastic front end of an interdental brush so that the improved cushioning effect reduces the risk of damage to the gum and makes the interdental brush more comfortable to use, which has an increased length of stroke, and which makes its manufacture more efficient.SOLUTION: An interdental brush comprises a brush member 2 having bristle filaments 5 attached to a spine 4 which projects from a handle part. The handle part comprises a body and a resilient transition portions 7. The handle part further comprises a hollow cavity 20, in the transition portions 7. The hollow cavity 20 improves the cushioning effect of the transition portion 7, and increases the length of stroke of the interdental brush by allowing the transition portion 7 to be deformed. |
