Floss threader [Description] A nylon loop designed to resemble a needle with large opening to thread floss. Tip of floss threader inserted and pulled through the space between two teeth to allow cleaning of the teeth sides Type II and III embrasures Trauma to gums from flossing threader into tissues Can be used a number of times, however floss is to be changed after each use [Indications] 
Type I embrasures: tight contacts between teeth, floss between and under abutment teeth and pontics of fixed prosthesis (e.g. fixed bridges and dental implants), under orthodontic appliances such as wires and lingual bar, under bars for implants