The invention provides novel dental film-forming compositions, comprising i. an acrylate / octylacrylamide copolymer, ii. one or more alkyl cellulose ethers, and iii. a solvent, and optionally further comprising whitening materials and/or active agents, together with method for using the same.本發明提供新穎形成牙齒薄膜之組成物，其包含i.丙烯酸酯/辛基丙烯醯胺共聚物、ii.一或多種烷基纖維素醚、以及iii.溶劑，以及視情況地進一步包含美白材料及/或活性劑，與其使用之方法。
