Investigations on a methacrylate-based flowable composite based on the SDR™ technology

The experimental flowable composite revealed the lowest shrinkage stress and shrinkage-rate values in comparison to regular methacrylate composites but intermediate micro-mechanical properties. Being at the same time more rigid (higher modulus of elasticity) and more plastic (low We/Wtot and high creep values) as the regular flowable materials, its effect on interfacial stress build-up cannot be easily predicted.