A cotton paper liner sheet and its protective card structure mainly include a card and a plurality of cotton paper sheets combined with the card. Among them, the front of the card can be used to print different characters or patterns, and the sheet systems are provided with a curved liner sheet monomer that is cut out by the cutting line of the intermittent line, and the liner sheet A fold line is arranged in the center of the body; one side of the sheet bodies is connected to each other and fixed on one side of the back of the card. In order to use, these liner sheets can be torn off from the sheet body one by one to provide the alveolar for dentures to make them firmer and other functions, thereby making the cotton paper liner sheet easier to carry and use. For convenience.一種棉質紙襯墊片及其保護卡結構,主要係包含一卡片及結合於該卡片之複數棉質紙材之片體。其中,該卡片的正面係可供印製不同之文字或圖案,該等片體係設有以斷續線之切割線切割出彎弧狀之襯墊片單體,並於該等襯墊片單體中央設有拗折線;該等片體的其中一側邊係於相互連結後,貼固於該卡片的背面之其中一側。俾於使用時,得以將該等襯墊片單體逐一由片體撕下,以供應用於假牙之牙槽使其更為牢固等功能,進而使棉質紙襯墊片之攜帶及使用更為方便。