Dental Amalgam

Question 1

Dental amalgam is the product of what?

Answer 1

amalgamation reaction

Question 2

Reactants in an amalgam reaction

Answer 2

alloy and mercury

Question 3

Two compositions of amalgam

Answer 3

conventional and high copper

Question 4

Conventional percentage components

Answer 4

65% Ag, 6% Cu

Question 5

Higher copper percentage components

Answer 5

40% Ag and 30% Cu

Question 6

In dental amalgam setting, what does the higher copper reaction not have?

Answer 6

gamma 2 product

Question 7

Term for mixing of dental amalgam

Answer 7

trituration

Question 8

After 30 mins since mixing, what metal is there a small shrinkage of into the alloy?

Answer 8

Hg

Question 9

Length of time for amalgam final strength to be reached?

Answer 9

24 hours

Question 10

What is creep?

Answer 10

plastic deformation underload - filling protrudes beyond tooth substance

Question 11

What is Hg toxic to

Answer 11

CNS

Question 12

Ideal amalgam Hg alloy ratio

Answer 12

5:8

Question 13

smaller particle size alloy achieve what?

Answer 13

higher 1 and 24 hour strength