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Table 2 Mechanical property of four materials

From: Analysis of the influences of bracket and force system in different directions on the moment to force ratio by finite element method

Material

Tooth

PDL

Alveolar bone

Bracket

Elastic modulus (MPa)

18,600

Hyperelastic

13,700

2.1 × 105

Poisson’s ratio

0.3

0.3

0.3