The present invention provides dental floss new device, which is adapted to put the whole in the oral cavity of the user (1). Floss device (1) has at least two (21) operating member is bound by the thread (10) for the control floss yarn and (10). Operating member (21), and is adapted muscles of the mouth, as directed by the tongue of the user, especially without having to put in the mouth of the finger, floss yarn (10) through (21) the operating member It is possible to guide the tongue.本発明は、ユーザの口腔内に丸ごと入れるように適合される新規のデンタルフロスデバイス(1)を提供する。フロスデバイス(1)は、フロス糸(10)及びその制御のために糸(10)によって結びつけられる操作部材(21)を少なくとも2つ有する。操作部材(21)は、口の筋肉、特にユーザの舌で導かれるように適合されて、フロス糸(10)は、指を前記の口腔内に入れることなく、操作部材(21)を介して舌で導くことができる。