Amalgam Flashcards
What is amalgam made of
An alloy of mercury
Sliver tin alloy
Copper and zinc
What does mercury do
Activates the reaction
What does silver do
Increases strength, tarnish and corrosion resistance, expansion
Decrease flow and creep, setting time
What does tin do
Increases setting time, flow and creep
Decreases strength, expansion, corrosion resistance
What does copper do
Increases strength, hardness, tarnish and corrosion resistance, expansion
Decreases flow and creep, setting time
What does zinc do
Increases expansion time (delayed)
Decreases oxidation of other metals
What does palladium do
Increases strength, tarnish and corrosion resistance
What does indium do
Increases strength, expansion, setting time
Decreases flow and creep, surface tension (less Hg required)
What happens with increased mercury
Decreased strength
Can amalgam bond to tooth structure
Yes
what does decreasing the trituration time do
Lengthen working time
What is the main component of amalgam
Mercury
What is the main component of silver tin alloy
Silver
