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Dental Materials


Thermal Conductivity rate of heat conduction through a material when a temperature difference occurs through the material
Hardness surface resistance to scratching
Abrasion (wear) removal of surface layers when two surfaces make frictional contact
Rigidity Young's Modulus - Ratio of stress to strain. Measure of amount of stress needed to cause material dimensions to change (ie undergo strain)
Depth of Cure Depth at which composite resin hardness is half that of the surface
Creep ability of material to change its shape when low level loading is applied repeatedly
Thermal expansion contraction or expansion rate of material compared to tooth during temperature differences
Viscoelasticity Strain vs. Time
Created by: mvirdi88