Importance

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Abstract

The invention relates to dental compositions, containing (a) 5 to 70 wt. %, based on (a)+(b)+(d), of polymerizable monomers and/or polymers, (b) 0 to 95 wt. %, based on (a)+(b)+(d), of fillers, (c) 1.0 to 15 wt. %, based on (a), of at least one initiator or one initiator system, (d) 0 to 95 wt. %, based on (a)+(b)+(d), of the usual auxiliaries, including pigments, radiopaque additives and/or thixotropy aids, characterized in that constituent (a) has a chemical structure such that partial or final curing of the dental composition can be effected by ring-opening metathesis polymerization. The dental compositions are characterized by a rapid polymerization process, leading to partially or fully cured materials, which display little volume shrinkage, little abrasion tendency and good mechanical properties.

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First Claim