Topkara, CanYilmaz, KorayGundogar, MustafaUslu, GulsahOzyurek, Taha2024-09-182024-09-1820222149-9063https://doi.org/10.4274/meandros.galenos.2021.03274https://search.trdizin.gov.tr/tr/yayin/detay/534321https://hdl.handle.net/20.500.12483/11911Objective: This study aimed to assess the pull-out bonding resistance of FiberSite and RelyX Fiber posts constructed from core structures using various resin cement. Materials and Methods: Sixty mandibular premolar teeth were horizontally sectioned to create a root canal length of 15 +/- 1 mm. Up to size #40, samples were prepared and obturated with gutta-percha and root canal sealer. Three groups of specimens (n=20) were formed. FiberSite posts were luted and built-up using Clearfil DC Core Plus in Group 1, RelyX Fiber posts were luted and built-up using Clearfil DC Core Plus in Group 2, and RelyX Fiber Posts were luted and built-up using Filtek Bulk Fill Posterior in Group 3. Each specimen was vertically positioned in a universal testing machine and rotated at 0.5 mm/min until it dislodged. Oneway ANOVA and post hoc tests were used to evaluate the data. Results: The bonding strength of FiberSite posts was higher than that of RelyX Fiber posts (p<0.05). Clearfil DC Core Plus-built RelyX Fiber Posts exhibited higher bond strength than Filtek Bulk Fill Posterior-built posts (p<0.05). Conclusion: FiberSite posts provide better root canal dentin retention than RelyX Fiber posts with different core materials.eninfo:eu-repo/semantics/openAccessPull-out testendodonticsfiber postpost retentionresin cementArticle23218218710.4274/meandros.galenos.2021.03274534321WOS:000823144900008N/A