From: The comparison of biomechanical effects of the conventional and bone-borne palatal expanders on late adolescence with unilateral cleft palate: a 3-dimensional finite element analysis
Material
Young’s modulus (MPa)
Poisson’s ratio
Alveolar bone and palate
13,700
0.30
Tooth
19,890
0.31
Periodontal ligament
50
0.49
Suture
10
Expander
190,000
0.33
Miniscrew
113,000