Mechanical Properties of Dental Materials .. 

in this video you can learn about the Mechanical Properties of Dental Materials.
in Mechanical Properties of Dental Materials you will find
Stress
Strain
Proportional limit
Yield point
Modulus of elasticity
Poison’s ratio
Toughness
Brittleness
Strength
Resilience
Hardness
Permanent Deformation
Ductility
Malleability.