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  Indian J Med Microbiol
 

Figure 1: (a) Mean hardness values of the three Portland cement formulations. Bars carrying the asterisk sign (*) are significantly different from other groups at P < 0.05. (b) Vickers diamond indentations into the surfaces of the three Portland cement formulations

Figure 1: (a) Mean hardness values of the three Portland cement formulations. Bars carrying the asterisk sign (*) are significantly different from other groups at<i> P </i> < 0.05. (b) Vickers diamond indentations into the surfaces of the three Portland cement formulations