Fracture resistance and flexural strength of endodontically treated teeth restored by different short fiber resin composites: a preclinical study

Abstract Aim To evaluate the effect of using different short fiber-reinforced resin composites on fracture resistance and flexural strength endodontically treated tooth compare it with nano-filled composite. Methods Sixty human premolars were used for test. Root canals sequentially enlarged a Pro-taper system from SX to F3 obturated Gutta-percha. Mesio-Occluso-Distal (MOD) cavities prepared in all teeth. Teeth then divided into 3 groups (n = 20 each) based type Group 1: Alert composite, 2: EverX Flow 3: Z350 Each group subjected load till universal testing machine measure resistance. For test, 10 specimens each material 3- point bending tests performed. The results both analyzed by Weibull analysis. Results restored Ever X composite conveyed highest significant value when compared other two materials. Conclusions Short Fiber-reinforced can be considered better choice restoration MOD