Table 4.
Sensitivity analysis by octupling the total number of elements in the model
| Original | Sensitivity (×8) | |||
|---|---|---|---|---|
| Elements | Elements | |||
| Adhesive | 2351 | 18,808 | ||
| Bone | 6835 | 54,680 | ||
| Bracket | 28,791 | 230,328 | ||
| Left ligature | 597 | 4776 | ||
| Right ligature | 597 | 4776 | ||
| PDL | 5777 | 46,216 | ||
| Tooth | 10,518 | 84,144 | ||
| Wire | 12,557 | 100,456 | ||
| Absolute crown displacement (mm) | Absolute apex displacement (mm) | Equivalent elastic strain in PDL | Von Mises stress in bracket (MPa) | |
| Original | 0.006 | 0.036 | 0.146 | 237.975 |
| Sensitivity | 0.004 | 0.031 | 0.156 | 297.663 |
| Difference | −0.002 | −0.005 | +0.010 | +21.756 |
| Difference % | −33.3% | −13.9% | +6.8% | +9.1% |
PDL periodontal ligament