Background: Metal post and cores are commonly used because of their superior physical properties. The present study was conducted to determine fracture resistance of different post and core system. Materials & Methods: The present study was conducted on 30 freshly extracted premolars. Teeth were divided into 3 groups of 10 each. Group I teeth were restored with prefabricated zirconia post (CP), group II teeth were restored with milled zirconia post (MZ) and group III teeth with pressable ceramic post (PC). Each specimen from the group was subjected to ‘‘load to fracture’’ in universal testing machine. Results: The mean fracture load with 1.4 mm post in group I was 314.5 N, in group II was 310.6 N and in group III was 208.4 N. It was 640.2 N, 412.8 N and 378.2 N with 1.7 mm post in group I, group II and group III respectively. The difference was significant. Conclusion: Authors found that prefabricated zirconia post with pressable ceramic core exhibited higher fracture resistance. Key words: fracture resistance, ceramic core, Post