| Title |
Study on Ag - Sn System for Dental Amalgam (2) - The effect of zinc on the structure and mechanical properties of the silver base dental amalgam - |
| Authors |
한상우(Sang Woo Han); 차영현(Young Hyoun Cha); 이종남(Jong Nam Lee) |
| Abstract |
In order to investigate the effect of zinc on the structure and mechanical properties of the silver base dental amalgam, the experiment was performed by setting the zinc content from 0 to 8% in Ag-Sn system alloy for dental application. From this experiment following results were obtained ; 1. γphase in the pre-alloy structure decreased as zinc content increased, whereas free Sn and Ag-Zn phase increased as zinc content increased. 2. Unreacted γphase in the amalgam structure decreased as zinc content increased, whereas γ₂phase increased as zinc content increased. 3. Hardness of γphase in the pre-alloy increased as zinc content increased. 4. Hardness and compressive strength of amalgam alloy containning zinc up to 3.7% increased as znic content increased, and then dereased with much more zinc content. 5. Hardness and compressive strength of amalgam alloy increased with aging. |