Film forming dental compositions comprising a compound of formula (I) or a pharmaceutically acceptable salt thereof, and a binder. The film forming dental compositions can include an amino sugar, a derivative of an amino sugar, or a pharmaceutically acceptable salt thereof, and can be useful in inhibiting biofilm formation in an oral cavity.式(I)の化合物又はそれらの薬剤として許容される塩と、結合剤とを含む被膜形成歯科用組成物が提供される。