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[\/vc_column_text][vc_empty_space height=”15px” el_class=”emty_basic”][vc_column_text]Riva silver\u00a0<\/strong><\/p>\n Performance<\/strong><\/p>\n Al-Naimi O.; McCabe J. F.; Comparing the Compressive Strength of Riva Silver GIC with that of Other Competitor Products; University of New Castle, 2005.<\/p>\n Purpose: T o measure the compressive strengths of a number of alloy reinforced glass ionomer cements. The method used would follow ISO9917-1:2003.<\/p>\n Materials and Methods: Following the \u201cISO9917-1:2003\u201d standard, split moulds and plates were used to make 40 disc specimens, divided into groups of 10, (with 6 + 0.1 mm height and 4 + 0.1 mm diameter) from each one of the following restorative glass-ionomer cements (A total of 120 specimens) and following the manufactuerers\u2019 instructions:<\/p>\n [\/vc_column_text][\/vc_column_inner][vc_column_inner width=”1\/3″][vc_empty_space height=”100px” el_class=”emty_basic”][vc_single_image image=”954″ img_size=”full”][\/vc_column_inner][\/vc_row_inner][vc_column_text]Results: The mean compressive strengths and standard deviatio (SD) of all materials after 1 hr, 1 week and 1 month, are shown in table 1 . The compressive strength of each material increased gradually with time reaching a maximum at 1 month for Ketac Silver (178.2 + 16.5) and Miracle Mix (211.7 + 15.8 Mpa), and at 1 week for Riva Silver (204.5 + 10.3).<\/p>\n <\/p>\n\n