الإعلانات
Thu, 01/30/2014 - 20:41
Dental MaterialsThe dental amalgam alloys and mercury are mixed in a ratio of:a. 1:2b. 1:1c. 1.3d. 2:1Most common drawback of amalgam restoration is:a. Secondary expansion.b. Porosity.c. Marginal break-downd.d. contraction on setting.Which part of...