PROBLEM TO BE SOLVED: To provide an interdental cleaning tool which increases cleaning properties more than before.SOLUTION: An interdental cleaning tool includes a base material part made of a synthetic resin and a soft part which covers at least a part of the base material part and is made of elastomer. The base material part comprises a handle base material part and a core base material part which continues at a tip end part of the handle base material part and is thin and long shaft-shaped. The soft part includes at least a cleaning soft part for covering the core base material part by insert molding. The interdental cleaning tool further includes a handle part which comprises the handle base material part and works as a handle and a cleaning part comprising the core base material part and the cleaning soft part for interdental cleaning. The cleaning soft part comprises a core covering part for covering the core base material part, a plurality of projection parts which are integrally formed on the core covering part and are formed at intervals in a longitudinal direction of the core base material part in a manner to protrude outward, and a plurality of recessed parts which are formed between the plurality of the projection parts of the core covering part and have a shape that is thin and long in a direction intersecting the longitudinal direction.SELECTED DRAWING: Figure 1【課題】従来よりも清掃性がより向上した歯間清掃具を提供すること。【解決手段】合成樹脂からなる基材部と、該基材部の少なくとも一部を被覆するエラストマからなる軟質部とを備え、前記基材部は、ハンドル基材部と、該ハンドル基材部の先端部に連設した細長い軸状の芯基材部とを有し、前記軟質部は、前記芯基材部をインサート成形により被覆する清掃用軟質部を少なくとも有し、前記ハンドル基材部からなる持ち手としてのハンドル部と、前記芯基材部と清掃用軟質部とからなる歯間清掃用の清掃部とを備えた歯間清掃具であって、前記清掃用軟質部は、芯基材部を被覆する芯被覆部と、該芯被覆部に一体的に形成され、芯基材部の長手方向に間隔をあけて外方へ突出状に形成された多数の突起部と、前記芯被覆部の複数の突起部間に形成され、前記長手方向に交差する方向に細長い形状の複数の凹部と、を有する歯間清掃具。【選択図】図１
