Abstract: A dental floss holder has a gripping part (2) and a curved part (6) sifting on the latter, which is provided on its one end with an attachment element (10) for a piece of dental floss (8) to be tensed over the curved part. A deflecting element (4) is provided in the region of the other end of curved part (6), by means of which dental floss (8) is inverted by a finger that tenses it of the hand grasping gripping part (2). The reversing element can be configured as the transition region between gripping part (2) shaped like a knob part (4) and the throughput opening (14) for dental floss (8) which passes through curved part (6). A detachable connection, for example, in the form of a bayonet pin-and-socket (20), between curved part (6) and gripping part (2) permits a disassembly of the dental floss holder into a small size for travel as well as use of the gripping part with other attachable devices, for example, a toothbrush.