An improved structure of a tooth pick is provided with a body, and two ends of the body are respectively provided with one end, and each end part is provided with two opposite side edges, at least one end part is provided with a row of teeth； and the row of teeth is formed by concave a number of cavities along the side edge of the end part, and each cavity in the row is respectively concave toward the top direction of the end part, so that a number of phases are formed on the side edge of the end part The hook extends in the direction opposite to the tip of the end, and the top edge of the hook is flush with the side edge, so as to avoid the hook cutting the gum.一種剔牙器改良結構，其具有一本體，且本體之兩端分別具有一端部，各端部分別具有兩個呈相對之側緣，其中至少有一端部上設有一排齒部；而排齒部是沿端部之側緣凹設數個凹穴所形成，其中各凹穴分別朝端部之頂端方向凹入，令端部之側緣上形成有數個朝相反於端部之頂端方向延伸之鉤部，且鉤部之頂緣係與側緣呈齊平狀，藉此避免鉤部割傷牙齦。
