![]() In terms of different loading conditions, the least and most stress values in the restoration part are observed in central loading and lingually oblique force, respectively. ![]() sample, whereas the higher percentage of ZnO NPs leads to the reduction of stress values. The accumulated stress in the restoration part increases for the 1% wt. Subsequently, the samples are exposed to different thermo-mechanical boundary conditions, and stress distributions at different margins are examined. ![]() A numerical simulation is conducted for a mandibular first premolar with a cervical lesion (1.5 × 2 × 3 mm 3) restored with composites containing 0 to 5% wt. Owing to having antibacterial properties, cervical composite restorations containing different ratios of Zinc Oxide nanoparticles (ZnO NPs) have been analyzed using the Finite Element method to determine the optimal incorporation ratio from mechanical and thermal perspectives. Due to an increase in prevalence of cervical lesions, it is important to use appropriate restorative materials to reduce the incidence of secondary lesions.
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