3D finite element analysis assessment of maxillary premolar restored with various restorative materials

Objectives: The study used three-dimensional finite element analysis to evaluate the effects of total deformation and Von Mises stresses (VMS) different shaped non-carious cervical lesions (NCCLs) occluso-gingival dimensions (OGD) maxillary premolars when restored with restorative materials. Methods: Maxillary premolar was scanned utilizing 3D-laser scanning produce a 3D digital geometrical model. Six cavities were created three shapes (notch, saucer, mixed), two OGD (1.5mm 3mm). Two 100N oblique forces applied at 11o 45o from vertical axis. data obtained expressed in mm, VMS values recorded. Results: Various tested NCCLs equivalent maximum on restorations. Increasing angle 11º 45º increased about times. increase by 30%. One Bulk Fill came second lowest VMS. Ketacä N100 restoration had longest lifetime. Conclusion: did not affect or VMS, whereas loading type materials influenced stress distribution cavity models premolars.