Introduction: The aim of this study was to evaluate the fracture resistance of endodontically treated teeth reconstructed with prefabricated metallic posts cemented with different types of cement. Material and method: the test was performed on forty maxillary incisors recently extracted for prosthetic, orthodontic or periodontal reasons. Their crowns were removed and after endodontic therapy
the posts were cemented with four types of cements: Adhesor, Panavia F, Ketac Cem, Kavitan Cem, The composite cores were made and all of them were covered with metallic crowns. All the samples were embedded in resin blocks and mounted in stainless steel cylinders for the
compressive testing. The force was applied on the oral surface of the crown, at an angle of 45 degrees, until the failure of specimens occurs. The compressive load at failure was recorded and analyzed with ANOVA and Student- Newman-Keuls tests. Results: the highest failure force was recorded in Panavia F group. Conclusions: resin cements are most suitable for post-and-cores cementation.
- FRACTURE RESISTANCE
- POST-AND-CORE SYSTEMS
- RESIN CEMENT