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Progress in Orthodontics

Table 1 Properties of the materials considered in this study

From: Biomechanical effects of different staging and attachment designs in maxillary molar distalization with clear aligner: a finite element study

Material

Young’s modulus, MPa

Poisson’s ratio

Alveolar bone

1.37 × 103

0.26

Tooth

1.96 × 104

0.3

PDL

6.9 × 10–1

0.49

Aligner

816

0.36

Attachment

12.5 × 103

0.36

  1. PDL Periodontal ligament
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