Dental Mercuroscopic expansion in dental amalgam occurs when: A Moisture contamination occurs during condensation of zinc containing amalgam B Moisture contamination occurs during trituration of zinc containing amalgam C Mercury released as a result of electrochemical corrosion re-reacts with Ag-Sn particle D Mercury released as a result of electrochemical corrosion re-reacts with Ag-Cu particle 💡 Explanation Mercuroscopic expansion in dental amalgam occurs when: ✓ Correct Answer: C. Mercury released as a result of electrochemical corrosion re-reacts with Ag-Sn particle