| 摘要 |
PROBLEM TO BE SOLVED: To provide an interdental brush which is simple in structure, can clean not only the dental plaque of interdental gaps but the front or back surfaces of the teeth as well and prevents the easy failure of bristles. SOLUTION: The interdental brush 10 is inserted into the spacing between the tooth 30 and the tooth 30 and removes the dental plaque between the teeth by being advanced and retreated relative to the oral cavity. Its shaft 12 is provided with a plurality of lines of the bristles 11 along the advancing and retreating directions.
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