Table 1.
Material properties used in this study
| Material | Young’s modulus (MPa) | Poisson’s ratio |
|---|---|---|
| Bone | 2000 | 0.30 |
| PDL | bilinear: 0.05/0.20 ultimate strain, ε 12 7.0% | 0.30 |
| Tooth | 20,000 | 0.30 |
| Adhesive—composite resin | 8823 | 0.25 |
| Adhesive—RMGI | 7600 | 0.30 |
| Bracket—titanium | 114,000 | 0.30 |
| Bracket and ligatures—stainless steel | 200,000 | 0.30 |
| Bracket—ceramic | 379,000 | 0.29 |
| Wire—TMA | 65,000 | 0.30 |
| Wire—stainless steel | 200,000 | 0.30 |
| Ligature—elastomeric | 100 | 0.30 |
PDL periodontal ligament, TMA titanium molybdenum alloy, RMGI resin-modified glass ionomer cement