title: Removal of gamma-II phase in amalgam.
abstract: To examine the quantitative change in the gamma 2 phase, specimens of three conventional, four dispersed-phase and two ternary amalgams were prepared. A higher energy amalgamator caused more gamma 2 phase to be formed in conventional amalgam and less in the dispersed-phase material. With storage at 37 degrees C this gamma 2 phase decreased quantitatively in dispersed-phase amalgams over one week but not in conventional amalgams. The selective etch system of gamma 2 did not disclose this phase in the ternary amalgams.
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003723:Dental Amalgam / Q000032:analysis*; D008628:Mercury / Q000032:analysis*; D013696:Temperature; D013997:Time Factors; D014001:Tin / Q000032:analysis*
chemical_list: D014001:Tin; D003723:Dental Amalgam; D008628:Mercury