The present invention relates to a dental composition comprising(i) a polymerizable composition containing a compound having repeating units of the following formula (I):whereinR1represents a hydrogen atom or a linear C1-6 alkyl group, or a branched or cyclic C3-6 alkyl group；Lrepresents a divalent organic linker group which may contain one or more monovalent or divalent organopolysiloxane groups and/or one or more monovalent or divalent perfluorohydrocarbyl groups；nis an integer of at least 1； and(ii) one or more compounds copolymerizable with the compound having repeating units of formula (I)； and(iii) a polymerization initiator system.
