Dental composition comprising(i) a water-soluble polymerizable compound of the following formula (1), AXn (1)whereinAis a straight chain or branched linker group containing at least n nitrogen atoms, whereby the linker group has polyamide, polyoxyalkylene and/or polyalkylene imine repeating units and optionally one or more acidic groups,Xare moieties containing a polymerizable double bond, which X may be the same or different and are represented by the following formula (2), whereby a moiety X of formula (2) is linked to the nitrogen atom of an amino group or a carboxamide group of A,whereinR1 and R2are independent from each other and represent a hydrogen atom, a C1-6 alkyl group or a group -(CH2)m-COOM, wherein M is a hydrogen atom or a metal atom, and m is an integer of from 0 to 6,Lis a bond or a C1-6 alkylene group； andnis an integer of at least 1；provided that at least one X cannot be a (meth)acryl group； and(ii) an initiator system；(ix) optionally a polyacidic polymer； and(x) optionally water and/or a water soluble solvent,(xi) optionally a particulate filler.
