What is the effect of over-trituration on the mixture of silver alloy and mercury?

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Lowers the amount of contractionEnhances the strength of lathe-cut alloy but diminishes the strength of spherical alloy amalgamReduces the tendency to creepResults in a dull and crumbly amalgam

Explanation

Over-trituration causes an increase in strength for lathe-cut alloys while weakening spherical alloy amalgams. It does not reduce contraction or creep, and it does not produce a dull, crumbly amalgam.