Bonds
Bonds and General
Solids
Solids, ETC
Liquids ETC.
100
Strong Bond Formed between two atoms who share or exchange electrons
What is a primary bond?
100
These bonds exist in water making easy vaporization of water
What is a hydrogen bond?
100
The resistance of a solid to penetration
What is hardness?
100
Maximum stress a material can stand and not be permanently deformed
What is elasticity?
100
Resistance to flow
What is viscosity?
200
Bond formed by atoms that do not share electrons
What is a secondary bond?
200
Bond formed by an electrostatic charge in adjacent atoms
What is a Van der Vaal bond?
200
When subjected to compression, stretching or shearing force without breaking
What is ultimate strength?
200
Resistance of a material to permanent deformation
What is Resilience?
200
Liquids or gels that flow more easily under a mechanical force
What is thixotropic?
300
Strongest Primary bond
What is a covalent bond?
300
Three basic forms of a material
What is a solid, liquid or gas?
300
Resistance of deformation
What is stiffness?
300
Ability of a material to resist fracture
What is toughness?
300
Materials that set through timed chemical reaction of the catalyst and base
What is chemical set materials?
400
Metal give an electron to an atom that needs extra electrons creating a positive and negative
What is an ionic bond?
400
Time permitted to manipulate a material in the mouth
What is the working time?
400
The greatest stress a structure can withstand without permanent deformation.
What is proportional limit?
400
Begins when a material can no longer be manipulated in the mouth?
What is initial set time?
400
Name given to the change in quality and deterioration of a material over time
What is shelf life?
500
Electrons in the outer shells are shared among all the atoms in a lattice; all atoms have a positive charge
What is a metallic bond?
500
The length of time to bring the components together into a homogenous mix.
What is the Mixing time?
500
Measure of weight a material has compared with its volume
What is Density
500
A material has reached its ultimate state.
What is final set?
500
Materials that are fabricated outside the mouth
What is indirect restorative materials?
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