Evaluation of Fracture Strength and Total Void Amount in Composite Restorations on Endodontically Treated Teeth

Objective: The aim of the study was to investigate fracture strength different composite resins and quantity voids in conventional posterior composite, high-flow flowable bulk-fill fiber-reinforced composite. Materials Methods: Forty-four caries-free, freshly extracted mandibular premolars were used for this study. Teeth prepared cavity root canal treatment. Subsequently, treatment applied teeth cavities order prepare them restorations. specimens then divided into four groups: group-1: Estelite Posterior; group-2: Flow Quick High Flow; group-3: Bulk-fill group-4: everX Posterior. One specimen from each experimental group examined using micro-CT perform measurement voids. Results: values flowable, fiber-reinforced, micro-hybrid composites found be similar (p=0.497). EverX Posterior showed highest (841.1±149.4 N), followed by (822.8±170.8 N). Conclusion: Volume (%) obtained Micro-CT analysis revealed that restorations with liner or exhibited more lowest percentage volume incorporating results.