| 摘要 |
PROBLEM TO BE SOLVED: To provide a brush between teeth insert-molded in a configuration having a conical recessed part at the end of a stick handle. SOLUTION: A brush 1 between teeth has a rod type brush 3 provided in the end of a stick handle 2. At the end of the stick handle 2, a conical recessed part 2A is formed about the core material 3A of the rod type brush 3. The stick handle 2 is insert-molded in a state where the base end part of the rod type brush 3 is buried.
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