Toxic Effects Of Mercury In Dental Amalgam

Describe high-copper silver amalgam alloys And their Advantages.
Or
Describe high-copper amalgam.
Answer:

High-copper alloys are of two types, i.e.

Advantages of High-copper Silver Amalgam Alloys:

In high-copper amalgam alloy, less mercury is required for amalgamation. So hazardous nature and ill effects of mercury are reduced in high-copper amalgam alloy.
In high-copper amalgam alloy creep is less, i.e. <1% In high-copper amalgam alloy tensile strength is high, i.e. 64 MPa
In high-copper amalgam alloy compressive strength is high, i.e. 250–500 MPa
In high-copper amalgam alloy dimensional changes are less, i.e. 1–9 µm/cm.
In a high-copper amalgam alloy setting reaction is fast so burnishing can be done on the same day
High-copper amalgam alloys are resistant to corrosion and have better marginal integrity.

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