Characteristics of Materials
Polymers
Alginate
Gypsum
Sealants-Composites-Bleaching
100
Shear, Tensile, Compression
What are the three basic forces in the universe?
100
Mer
What is the basic building block of a polymer?
100
An impression
What is a negative replica of something called?
100
A mineral in the ground
What is gypsum?
100
Low viscosity
What sealant property helps it penetrate into grooves?
200
A force applied to an object
What is stess?
200
Thermoplastic
What is a polymer that can be heated and re-formed?
200
Irreversible hydrocolloid
What type of impression material is alginate?
200
Tyoe III gypsum
What is the type of gypsum we used in the lab?
200
Acid Etching
What helps a sealant attach to enamel?
300
Boiling point, Density, Color
What are examples of physical properties?
300
Elastomers, fibers, plastics
What are the three most basic polymer forms?
300
Synersis
What is water loss to the atmosphere called?
300
Slurry Water
What can be used to speed up the setting of gypsum?
300
Fillers
What is added to composites to make them stronger?
400
Ductile
What is a material that can be forced into new shapes?
400
Wool, Rubber, Cellulose
What are examples of natural polymers?
400
Stropping
How do you get rid of air bubbles with alginate?
400
Four
How many different types of gypsum exist?
400
Hydrogen peroxide
What is the active agent in nightguard bleaching?
500
Toughness, Solubility, Elasticity
What are examples of mechanical properties?
500
Cross linking
What process makes polymers much stronger?
500
Synersis
What is water loss to the atmosphere called?
500
Type I Gypsum
Which type of gypsum is NOT used anymore?
500
At least five (5) years
How long should properly placed sealants last?
M
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