Amalgam Lecture

Question 1

Soupy, premature setting, brittle, excess matrix, difficult to remove amalgam says what about your trituration length?

Answer 1

It was overtriturated

Question 2

Shiny, soft, warm amalgam says what about your trituration length?

Answer 2

It was properly triturated

Question 3

Grainy, crumble, dull, excess Hg, reduced strength, hard to handle amalgam says what about your trituration length?

Answer 3

It was undertriturated

Question 4

The process of compressing the alloy into the tooth prep and eliminating all voids

Answer 4

Condensation

Question 5

Generally, condensation must be completed in ____ minutes otherwise cracks will be created

Answer 5

3-4

Question 6

Pressure =

Answer 6

Force/Area

Small condenser -> higher pressure

Question 7

Condensation must occurs under a wet or dry field?

Answer 7

Dry

Question 8

If you feel you are perforating into the first increment of amalgam as you condense, then either:

Answer 8

• Your condensation force is too high

- You didn’t place enough increment

Question 9

Last increment of amalgam should go beyond the external outline of the prep by ____ mm done with a ____ condenser

Answer 9

1.0 mm

Large condenser

Question 10

Excess amalgam error that tapers beyond the external margin. Explorer catches from CSM to amalgam

Answer 10

Flash

Question 11

Break/groove between tooth and amalgam restoration where food/microorganism can become trapped. (Operator error). Explorer catches from CSM to amalgam and vice versa

Answer 11

Open Margin Error

Question 12

Amalgam does not reach enamel margin (operator error). Explorer catches from amalgam to CSM.

Answer 12

Submarginal/Ditching

Question 13

Inadequate condensation can lead to this error

Answer 13

Void