#$%^&*AU2012202907B220141023.pdf#####DENTURE BASE MATERIAL THAT IS FRACTURE-RESISTANT AFTER CURING AND IS OBTAINED FROM AUTO-POLYMERISING OR COLDPOLYMERISING COMPOSITIONS ABSTRACT A fracture-resistant denture base material is obtained from an auto-polymerising or coldpolymerising composition containing (A) a liquid monomer component； (B) a powder-shaped component, and (C) at least one initiator or one initiator system for auto- or cold-polymerisation, whereby at least one member of the groups of aliphatic urethane acrylates and aliphatic urethane methacrylates is present in (A) or/and (B)； whereby the fracture-resistant material shows, in particular, a fracture toughness of>； 1.8 MPa*m 2 and a fracture work of>； 400 J/m2 after curing, and, preferably also shows a difference in the yellow value, also called b value, of maximally one unit after 8 weeks of storage in fully desalted water at 50*C. Preferably, no synthetic rubber is present.
