Stress attenuating function of split shaft post system

ABSTRACT

The aim of this study was to compare the reduction in the insertion stress factor by using solid and split shaft post systems in an experimental determination of the stress level. From the results of this study, it was detected that the undesirable stress concentration at solid post-model interface have been reduced 50%, by using split shaft one. This is due to collapsing ability of split shaft during the insertion into the post space. It can be concluded that split shaft post have provided a stress breaking function, so it is recommended for restoration of endodontically treated teeth