Evaluation of Fracture Resistance of Endodontically Treated Maxillary Premolars Restored with Different Restorative Materials - An In Vitro Study

Aim: In this study was evaluated the fracture resistance of endodontically treated maxillary premolars restored with different restorative materials. Methods: Sixty were submitted to same mesio-occlusal-distal cavity preparation, endodontic treatment and divided into 5 groups (n = 10): Coltosol Group – GCO calcium silicate material; Glass Ionomer Cement GGIC, Maxxion R; Modified GMGIC, Gold Label 2; Composite - GC, Z100, positive control group (GP) left unrestored. One remained intact (n=10) serving as negative (GN). Samples subjected testing by universal machine until occurred registered in newtons (N). Fracture pattern assessed described favorable or unfavorable. The results statistically analyzed 1-way analysis variance post hoc Tukey test significant statistical difference at P < 0.05. Results: Higher found for GC (1,128.35 ± 249.17), GMGIC (1,250.77 173.29), GN (1,277.22 433.44) (P .05). More fractures observed (6), (7), (7) Conclusion: Teeth composite modified GIC presented teeth. GGIC similar unrestored