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Progress in Orthodontics

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

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