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Table 1 Parameters for the mechanical properties of tooth, spongy bone, cortical bone, PDL, and stainless steel

From: The effect of vertical bracket positioning on torque and the resultant stress in the periodontal ligament—a finite element study

 

Young's modulus (MPa)

Poisson's ratio

Enamel

84,100

0.33

Dentin

18,600

0.30

Alveolar bone

490

0.30

Cortical bone

14,700

0.30

PDL

0.1

0.45

Stainless steel

200,000

0.30

Composite

2,140

0.31