The invention relates to a gingival drainage line, which is flexible. The gingival drainage line is wound by a thin sheet, which is in the shape of non solid multi-layer long strip. The thin sheet includes a first side and a second side； the first side is opposite to and parallel to the second side； the gingival drainage line is wrapped and wound from the first side to the second side of the sheet.本創作係關於一種排齦線，其具可撓性，該排齦線係由一薄片捲繞而成且呈非實心多層長條狀，該薄片包含一第一側邊及一第二側邊；該第一側邊與該第二側邊相對且相平行；其中該排齦線係由該薄片之第一側邊往第二側邊之方向包覆捲繞成形。
