A method for producing a length of dental floss having a plastic part attached comprising the steps of providing a mould having a cavity disposing a length of dental floss within the cavity arranging the dental floss within the cavity such that the dental floss enters the cavity at a first location X and exits the cavity at a second location y and wherein the path length of the dental floss within the cavity is greater than the linear distance between the first location x and the second location y and injecting a plastic material into the cavity to encapsulate the floss.