Abstract

The deformation behavior of 8 different posterior composites under uniaxial static and dynamic compression have been investigated. The influence of water sorption on the mechanical properties was also assessed. The static creep behavior during a 2 h period and the creep recovery for the following 2 h were determined. Stress/strain curves were recorded during cyclic loading at a frequency of 0.25 Hz for 2 h. Water sorption increased the creep and decreased the creep recovery. Both static and dynamic creep values were higher for the microfilled materials than for the other types of composite materials.

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