The utility model purpose what provide it is a kind of exert a force well, facilitate grippings, simply pull folding, highly-safe, and the tooth that can be directed to different size carry out the improved structure of dental floss rod for the movement cleaned. Its technological means is that the dental floss stick includes: a dental floss holder,It is Unitary injection formed,And what center has a grip part,And the both ends of the grip part are respectively provided with a frame portion and a tip,The frame portion has the recess portion between two dental floss fixed links and a formation two dental floss fixed link of what; And a dental floss,It sets the aforementioned two dental floss fixed link end of what,So that user carries out the movement cleaned to interval of tooth; Its characteristic is in what: grip part front end described above and frame portion top,Equipped with the big what grip part of a thickness,And to lower recess,The force section of non-even surface; A grooving is equipped between above-mentioned grip part and tip,The grooving, which can be pulled for aforesaid tip to grooving direction, rolls over and fragments into two sections,Refuse bag is pierced through to avoid tip to cause to hook to pull to pull open,The case where even stabbing other people generation.本新型目的在於提供一種好施力、方便握持、簡易扳折、安全性高,且能針對不同大小之牙齒進行清潔之動作的牙線棒改良結構。其技術手段為該牙線棒包括:一牙線架,其係一體射出成型,並於中心具有一握持部,而該握持部的兩端分別具有一框部及一尖端,該框部具有兩牙線固定桿及一形成於兩牙線固定桿之間的凹部;以及一牙線,其設於前述兩牙線固定桿末端,以供使用者對牙齒間隙進行清潔之動作;其特徵在於:上述所述握持部前端與框部頂端,設有一厚度大於握持部,且向下凹陷、非平滑面的施力部;上述握持部與尖端之間設有一切槽,該切槽能供前述尖端向切槽方向扳折並斷裂成二節,以避免尖端刺穿垃圾袋造成勾扯拉破,甚至刺傷他人的情況產生。