Conclusions

Within the limitations of this in vitro study, commercially available nanohybrid composite resins exhibited significant differences in their mechanical properties. Tetric N-Ceram demonstrated the most favorable overall mechanical performance under the experimental conditions employed. These findings provide comparative laboratory evidence that may assist in material selection; however, they should not be interpreted as direct indicators of clinical performance. Long-term in vivo and well-designed clinical studies are required to confirm these findings and establish their clinical relevance.