Range & Year
Amalgam was developed in
What is 1820
Material that increases strength & expansion
What is silver
To replace or bring something back to its pleasing appearance.
What is Aesthetic?
results from chemical reactions which penetrate the amalgam and eventually leads to failure of the restoration.
What is corrosion?
contain less than 0.01% of Zinc.
What is Zinc free alloy?
Bonded amalgam was introduced in
What is 1990?
Material that reduces creep & marginal breakdown
What is Indium?
An alloy that contains solid metals of Silver, Tin, Copper, and sometimes Zinc.
What is Dental Amalgam Alloy ?
the chemical reaction between the amalgam and the oral environment is restricted to the amalgam surface
what is tarnish?
consist of small round particles; strong and quick setting; easier to condense and have improved carving and polishing properties.
What is spherical high copper alloy?
Low copper contains
What is 2-6% by weight
Materials that reduce corrosion
What is Palladium?
A dense metal that is liquid at room temperature
What is Mercury?
the net contraction or expansion of an amalgam.
what is Dimensional Change?
combination of spherical and lathe-cut.
What is admix?
Range of Zinc containing alloys
What is 0.01- 1%
Material that provides clinical performance
what is Zinc?
A metallic restoration composed of a mixture of silver and other metals with mercury
What is Dental Amalgam?
gradual dimensional change under load causing breakdown of the marginal integrity of the filling.
Creep
alloy particles are irregular in shape in the form of shavings.
What is lathe cuts?
High Copper alloy contains
What is 12-30% by weight
Material that activates reaction
What is Mercury?
To replace or bring something back to its natural appearance and function
What is restorative?
Manipulation of the amalgam affects the strength of the final restoration (3)
Under trituration, over trituration and poor condensation
contain Silver, Tin, Copper, and Zinc or Indium.
What is Quaternary Alloys?