Midterm Exam Review Flashcards
A(n) ______ reaction is the effect of an electrical shock that results when two metals come into contact.
Galvanic
A type of dental restorative material that is nonmetallic, is resistant to heat and corrosion, and resembles clay is _______.
ceramic
For a material to become hardended or set, it is said to be ___________.
cured
To bond or attach two items together is to _______________.
adhere
_______ is a soft, silvery white metaillic chemical element that resembles platinum.
Palladium
____ is a term used to bring a tooth or teeth back to their natural appearance.
Restorative
An object within the amalgam capsule used for pounding or pulverizing is a _____.
pestle
____ is a solid white, translucent ceramic material made by firing pure clay and then glazing it.
Porcelain
An artistically pleasing and attractive apperance is said to be _____.
esthetic
_____ is a soft, yellow, corrision-resistant metal used in the making of indirect restorations.
Gold
The property of a liquid that prevents it from flowing easily is the ______.
viscosity
____ is a mixture of alloys triturated with mecury to produce a restorative material.
Amalgam
______ refers to how a dental material hardens or sets by means of a chemical reaction.
auto-cure
A(n) _________ is a microscopic area where moisture and contaminants can enter.
microleakage
A(n) _______ is a combination of two or more metals.
Alloy
______ is the means of preparing a tooth surface for retaining or holding something in place.
retention
Something that is round is said to be ____________.
spherical
_____ is the distortion or change produced by stress.
Strain
An internal resistance to an externally applied force is referred to as ______.
stress
_____ is an inorganic material that adds strength and other characteristics to composite resins.
filler
What type of reaction does a dental material undergo when distortion occurs?
A dental material undergoes stress when distortion occurs.
What happens to a dental material when it is exposed to hot & cold?
A dental material undergoes contraction and expansion when it is exposed to hot & cold.
What is a source of galvanic action?
Saliva (salt conducting electrical currents) and two metals (acting as a battery) are source of galvanic action.
What are the four properties that must be considered in the application of a dental material?
Flow, adhesion, retention, and curing