The invention relates to medicine, namely to hygiene of oral cavity, and can be used for cleaning interdental spaces. Device for cleaning interdental spaces, made from elastic material of medicinal purpose, consisting of working part length 1.5 cm with perpendicular located three elements shilovidnoi form of round section length 4 mm, distance between elements shilovidnoi shape 7.5 mm, into direct handle round section 3 mm, length 8 cm with sharpened end, opposite working part.