Fracture-resistant denture materials obtained from autopolymerizing or cold-curing compositions

摘要

From an autopolymerizing or cold-polymerizing composition, comprising (A) a liquid monomer component, (B) a powdery component and (C) at least one initiator or an initiator system for auto- or cold polymerization, in (A) or / and (B) at least If a member of the groups of the aliphatic urethane acrylates and the aliphatic urethane methacrylates is / are present, a fracture-resistant prosthesis material is obtained, which in particular has a fracture toughness of 1.8 MPa.m1 / 2 and a fracture work of 400 J / m2, and preferably also after 8 weeks of storage in demineralized water at 50 ° C, there is a difference in the yellow value, the b-value, of at most one unit.