PROBLEM TO BE SOLVED: To provide an interdental cleaner capable of being properly operated while retaining and improving cleaning property on interdental spaces.SOLUTION: An interdental cleaner comprises a base part provided with a shaft part (20), and a cleaning part (40). The cleaning part (40) has a cleaning part body (50) covering the outer peripheral surface of the shaft part (20), and the cleaning part body (50) is provided with a spiral groove part (51) with a central axis as the center.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】歯間の清掃性を維持、向上させつつ、適切に操作可能な歯間清掃具を提供すること。【解決手段】歯間清掃具であって、軸部（２０）が設けられた基部と、清掃部（４０）とを備える。清掃部（４０）は、軸部（２０）の外周面を被覆する清掃部本体（５０）を有し、清掃部本体（５０）は、中心軸を中心とする螺旋状の溝部（５１）が設けられている。【選択図】図２
