Table 1.

Elastic modulus and Poisson’s ratio of materials.

Material	Elastic Modulus (MPa)	Poisson’s Ratio
Stainless steel	200000	0.33
Titanium alloy	104000	0.33
Gold alloy	89500	0.33
Glass fiber (Snowpost)	45000	0.28
Carbon fiber (Composipost)	22000	0.31
Photocore	18600	0.26
Dentin	18000	0.31
Cortical bone	13700	0.3
Sponge bone	1370	0.3
Gutta-percha	0.69	0.45
Gingiva	0.019	0.3
Periodontal ligament	0.5	0.45