Dental compositions based on ROMP oligomers and polymers

Dental composition consisting of:

• (a) 5 to 70 wt. %, relative to (a)+(b)+(d), of oligomers and/or polymers,
• (b) 0 to 95 wt. %, relative to (a)+(b)+(d), of fillers,
• (c) 0.01 to 3 wt. %, relative to (a), of at least one initiator or one initiator system,
• (d) 0 to 95 wt. %, relative to (a)+(b) +(d), of adjuncts, selected from the group consisting of pigments, radiopaque additives, thixotropy auxiliaries, stabilizers, diluents, chelating agents, and mixtures thereof,
• wherein 5 to 100 wt. % of component (a) comprises oligomers or polymers with the general formula ##STR12## or ##STR13## in which:
• X denotes CH.sub.2, NH, O or S,
• m denotes a value from 10 to 20 000,
• n denotes a value from 10 to 20 000,
• R.sup.1 denotes --CHR.sup.4 --CHR.sup.5 --, --CR.sup.4 --CR.sup.5 --, ##STR14## C.sub.2 -C.sub.10 alkylene, C.sub.2 -C.sub.10 -alkenylene, C.sub.2 -C.sub.10 epoxyalkylene, or C.sub.6 -C.sub.15 -o-arylene which can be substituted by alkyl, OH, NH.sub.2, C(O)OR.sup.6, C(O)NHR.sup.6, PO.sub.3 H, SO.sub.3 H, Cl, Br or F, ##STR15## R.sup.1' denotes --CHR.sup.4 --CHR.sup.5 --, --CR.sup.4 .dbd.CR.sup.5 --, R.sup.2, R.sup.3, R.sup.4, R.sup.5 denote H, C.sub.1 -C.sub.15 alkyl, C(O)OR.sup.6, C(O)NHR.sup.6, PO.sub.3 H, SO.sub.3 H, OH, wherein R.sup.4 and R.sup.5 are the same, and
• R.sup.6 denotes H or a linear, branched or cyclic C.sub.1 -C.sub.30 -alkyl or -aryl residue, which can contain 0-10 O or N atoms and 0 to 5 carbonyl groups and is either saturated or unsaturated, with the proviso that these oligomers and polymers contain a group which allows curing of the composition by radical or cationic polymerization or by a cement reaction.