Strength Behaviour of Two Composite Dental Filling Materials Under Cyclic Loading Conditions

Abstract

Dental fillings are usually not stressed statically, but have to sustain varying loads. In most cases these loads are more or less cyclic, e.g. occuring during chewing food or for gnashing. On the other side it is well known of many materials that the strength drastically falls off for such alternating loads, especially under long-term conditions. Therefore, it seems to be necessary to know more about the behaviour of dental filling materials under such fatigue conditions.