Patent ID: 8540918

Claim:
A method of producing a tooth-cleaning device having an interdental treatment part, in which a stem, which bears a treatment head and is made from a wire, is encapsulated by injection molding in a plastics material in order to form a retaining part, the method comprising: inserting the wire of the interdental treatment part into a stem aperture in a clamping bar of an injection mold such that the wire projects into a first cavity portion by way of a fastening portion spaced apart from the treatment head of the interdental treatment part, the first cavity portion forming a part of the clamping bar and following the stem aperture, the clamping bar having a protrusion that corresponds to a depression and projects into the first cavity portion; abutting the clamping bar against a cavity body of the injection mold, on which a second cavity portion is formed, such that the first and second cavity portions form the cavity, the cavity body and the clamping bar being separable; injecting the plastics material into the cavity in order to form the retaining part, thereby encapsulating the fastening portion; partially curing the retaining part; and removing the retaining part with the interdental treatment part from the open injection mold by a stroke motion of the retaining part guided in the stem aperture, in a direction from the treatment head towards the retaining part and opening the injection mold.