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Table 2 Material properties used in FEM model

From: Maxillary anterior en masse retraction using different antero-posterior position of mini screw: a 3D finite element study

Material Young’s modulus (Mpa) Poisson’s ratio
Tooth 2 × 104 0.30
PDL 0.68 0.49
Alveolar bone 2 × 103 0.30
Bracket 2.1 × 105 0.30
Arch wire/hook 2.1 × 105 0.30