A25    Compare and contrast the tensile strength, compressive strength, and modulus of elasticity of enamel and dentin.

Tensile strength:

• Enamel     10 MPa
• Dentin      50 MPa    

Compressive strength:

• Enamel    230 - 380 MPa
• Dentin     260 - 300 MPa

Modulus of elasticity:

• Enamel    46 - 48 GPa
• Dentin     12 - 14 GPa