| 摘要 |
DENTURE BASE MATERIAL THAT IS FRACTURE-RESISTANT AFTER CURING AND IS OBTAINED FROM AUTO-POLYMERISING OR COLD POLYMERISING COMPOSITIONS A fracture-resistant denture base material is obtained from an auto-polymerising or cold polymerising 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. |
