Table 1 Stiffness, yield force, and maximum pullout force for the buttress-threaded screw, triangle-threaded screw, and square-threaded screw during axial pullout (n = 5 for all groups)
|  | Stiffness Mean ± SD (N/mm) | Yield force Mean ± SD (N) | Max. pullout force Mean ± SD (N) |
|---|---|---|---|
Buttress thread | 373.62 ± 50.89 | 154.99 ± 9.63 | 195.16 ± 1.41 |
Triangle thread | 556.81 ± 40.98 | 184.08 ± 7.50 N | 256.25 ± 8.95 |
Square thread | 489.29 ± 91.52 | 152.42 ± 12.35 | 191.33 ± 6.10 |
p-value (one-way ANOVA) | p<0.05 | p<0.05 | p<0.05 |