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Progress in Orthodontics

Table 1 Mechanical properties of various materials

From: Comparison and evaluation of stresses generated by rapid maxillary expansion and the implant-supported rapid maxillary expansion on the craniofacial structures using finite element method of stress analysis

Material

Modulus of elasticity

Poisson’s ratio

Compact bone

1.37 × 103

0.3

Cancellous bone

7.9 × 102

0.3

Tooth

2.0 × 103

0.3

Sutures

1.46 MPa

0.28

Cartilage

0.69 MPa

0.018

Titanium

114 MPa

0.34

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