PROPERTIES OF AMALGAM RESTORATION

Trituration
o The longer the trituration the smaller the setting expansion- shiny and wet appearance, strength will be maximal, and will have longer lasting luster after carving
o Inadequate trituration will have poor strength and rough surface, will cause corrosion more
o Trituration Time – 45-60 seconds

P/L ratio
o 1:1 by volume (EamesTechnique)
o 50% by weight

Working/Setting Time ー 3-4 minutes

Q. The maximum time elapsed before condensation of amalgam - 3 min

Condensing Force ー 3-4 lbs

Precarving Burnishing
a) to remove excess mercury
b) to condense and adapt to lateral walls*

Amalgam Cry / Silver Ringing Sound ー Setting Indication

Polishing ー After 24 hours* ー In the presence of water.