Table 1. Mean and standard error of fracture strength in the experimental and control groups in newton (N).

Groups	Mean	Standard error
Control	915.68a	197.41
RMGIC	805.13a	59.44
CR	909.20a	101.46
MTA	522.52b	35.57

Different superscript letters represent statistically significant differences (P < 0.05) in the same column.