Eur Endod J. Ahead of Print: EEJ-30301 | DOI: 10.14744/eej.2024.30301

Effects Of Different Cementation Systems on Pull-Out Bond Strength of Fiber Post to Bioceramic Putty Using a 3D Prefabricated Root Canal Model of Immature Permanent Teeth: An In-Vitro Study

Yasser Alsayed Tolibah, Mohammed Kheir Awad, Yasser Najjar, Mohammad Tamer Abbara, MHD Bashier AlMonakel, Jihad Abou Nassar, Osama Aljabban, Nada Bshara
Faculty of Dentistry-Damascus University, Almazzeh ST, Damascus, Syria

Objective: The current study aimed to find the best cementation system to cement the fiber post with BioCeramic putty; Total-each Dual-cure Hydrophobic Resin Cement (TDHRC), Self-adhesive Dual-cure Hydrophilic Resin Cement (SDHRC), with SDHRC modified with a BioCeramic sealer, and Glass Ionomer Cement (GIC).
Methods: An impression was captured from the immature premolar root canal, followed by scanning and the subsequent design of Prefabricated Root Canal Models for immature permanent teeth (PRCMs). A total of forty PRCM replicas were precision-printed using advanced 3D printing technology. Subsequently, each PRCM underwent meticulous filling with BioCeramic putty and a fiber post. After two hours, the fiber posts were removed and treated with hydrofluoric acid for all groups. Subsequently, fiber posts of groups except GIC group received silane solution application. The PRCMs were categorized into four groups based on the cementation system employed; Group 1 (n=10) with TDHRC, Group 2 (n=10) with SDHRC, Group 3 (n=10) with SDHRC modified with a BioCeramic sealer, and Group 4 (n=10) with GIC. After 48 h, the specimens underwent pull-out strength testing using a universal testing machine, performed along an axis parallel to the longitudinal axis of the fiber post at a crosshead speed of 1 mm/min. Failure modes were scrutinized using a stereomicroscope. The acquired data were subjected to robust statistical analyses, employing one-way ANOVA and Tukey HSD tests with a significance level set at α=0.05.
Results: The One-way ANOVA test showed a significant difference in the pull-out bond strength of the groups (p<0.001). Tukey HSD test revealed that the mean bond strength values were significantly higher in group 1 compared to the other groups. Adhesive failure had a higher frequency in groups 2 and 4, whereas mixed failure had a higher frequency in groups 1 and 3.
Conclusion: The TDHRC exhibited significantly superior bond strength in comparison to the other groups, particularly concerning the fiber post cementation to BioCeramic putty. (EEJ-2024-06-094)

Keywords: Bioceamic putty, cementation system, dual-cure resin cement, fiber post, glass ionomer cement

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