The present invention provides a floss bar structure improvement, which mainly comprises a frame body similar to a U-shaped frame formed by a main frame plate, a front frame plate and a rear frame plate, and a rod body and a second floss line having a flat end. Flossing unit； the rod body is formed by the main frame plate of the frame body. The creation feature is that a wire plate is formed on the left and right sides of the front frame and the rear frame plate, and one of the flossing units is flossed. One end is fixed to the left side of the front frame and the other end is fixed to the right side of the rear frame. The other end of the floss is fixed to the right side of the front frame and the other end is fixed. The flossing plate on the left side of the frame plate is arranged to form a flossing unit which is overlapped into an X-shaped state, and is arranged between the frame plate and the rear frame plate of the frame body； While cleaning the teeth of the teeth, the flossing part of the opening can be surely contacted with the side corners of the front and rear sides of the teeth, forming a simultaneous cleaning effect on the teeth and the corners of the teeth, so that the floss bars can be more effectively cleaned. The effect of teeth.本創作係提供一種牙線棒結構改良，主要包含有由主架板、前架板、後架板構成類似ㄇ字型之框架體及一末端成扁薄尖端的桿體及二牙線構成之牙線單元；該桿體由框架體的主架板延伸而成，本創作特點是於前架板與後架板的末端左右兩側皆形成一置線板，牙線單元中之一牙線一端固接於前架板左側置線板上而另一端固接於後架板右側置線板上，另一牙線一端固接於前架板右側置線板上而另一端固接於後架板左側置線板上，使二牙線形成交疊成X型態的牙線單元設於框架體之前架板與後架板間；藉由交疊開岔的二牙線可供使用者在清潔牙齒齒縫的同時，讓開岔的牙線部能與牙齒前後側的側邊角部位確實接觸，形成同時對齒縫及牙齒側邊角部位的清潔作用，讓牙線棒達到更有效清潔牙齒的功效。
