| Variable |
Group (treatment) |
N |
Median (IQR) |
x2 statistic (df)a |
p-valuea |
| Failure load (N) |
A (titanium post, no ferrule effect) |
16 |
253.10 (76.6) |
6.741 (3) |
0.081 |
| B (titanium post, ferrule effect) |
17 |
265.40 (279.7) |
| C (fiber reinforced composite post, no ferrule effect) |
16 |
203.10 (68.7) |
| D (fiber reinforced composite post, ferrule effect) |
16 |
251.75 (69.2) |
aKruskal-Wallis Test |
