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Marco Ferrari


Clinical evaluation of fiber-reinforced epoxy resin posts and cast post and cores


This retrospective study evaluated treatment outcome of cast post and core and Composipost systems after 4 yrs of clinical service.


200 patients were included in this study. They were divided into two groups of 100 endodontically treated teeth restored with a post.

  • Group 1: Composipost (RTD St Egreve, France) systems were luted into root canal following the manufacturer's instructions.
  • Group 2: Cast post and cores were cemented into root canal preparations with a traditional technique. The patients were recalled after 6 months, 1, 2 and 4 yrs and clinical and radiographic examinations were completed. Endodontic and prosthodontic results were recorded.


  • Group 1: 95% of the teeth restored with Composiposts showed clinical success; 3 of these samples were excluded for noncompliance and 2% showed endodontic failure.
  • Group 2: Clinical success was found with 84% of teeth restored with cast post and core. 2% of these samples were excluded for noncompliance, 9% showed root fracture, 2% dislodgment of crown and 3% endodontic failure.

Statistical evaluation showed significant differences between Groups 1 and 2 (P<0.001).

The results of this retrospective study indicated that the Composipost system was superior to the conventional cast post and core systems after 4 years of clinical service.