Introduction Flashcards
Force
Any push or pull on the object the result of the force on an object is resistant
What are the three types of stresses and strains
Tensile compressive shearing
Tensile
Pulls and stretches of material
Rubber bands used in orthodontics
Compressive
Pushes or compresses the material together
Biting or chewing
Shearing (due to stress)
Slides one part of a material parallel to another part in a back-and-forth motion
(Grinding of the teeth)
Corrosion
Results of the chemical attacks of the oral environment on pure metal materials
Adhesion
Force or attraction that holds unlike substance together
Such as dental plaque adhering to the to the tooth
Dimensional change
Changing the dimensions of the material due to a force acting on them
Malleability
The ability of a material to withstand compressive stresses without fracturing
Ductility
The ability of a material to withstand forces of tensile stress without failing
Elasticity
The ability of a substance to be distorted or deformed by an applied force and then return to its original’s state once forced has been removed
Thermal conductivity
Ability of materials to transmit heat
Thermal expansion
With temperature changes materials expand and contract
Viscosity
The property of a liquid that causes it not so easily
Galvanism
When two different metals are present in the mouth there is a potential for the creation of small electrical shocks
