PROBLEM TO BE SOLVED: To provide a tool which allows a user to use a toothbrush and a dental floss at the same time, since double labor is required when exchanging a toothbrush for a dental floss for washing ones teeth.SOLUTION: A dental floss 4 can be attached to a flock part 1 of a toothbrush, for avoiding double labor in washing ones teeth.SELECTED DRAWING: Figure 1