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Figure 6: Percentage mineral volume of teeth before and after treatment. *Implies, compared to control, 80 Gy treatment samples had a significant reduction in percentage mineral volume (P < 0.013). Average diagonal values generated from triplicate indentations were calculated for microhardness and mineral volume (%) parameters using hardness number interconversion indices and percentage mineral volume formula. Error bars represent the standard error. Sample size (n) for controls = 22, 20 Gy = 4, 40 Gy = 5, 60 Gy = 4, 80 Gy = 4

Figure 6: Percentage mineral volume of teeth before and after treatment. *Implies, compared to control, 80 Gy treatment samples had a significant reduction in percentage mineral volume (<i>P</i> < 0.013). Average diagonal values generated from triplicate indentations were calculated for microhardness and mineral volume (%) parameters using hardness number interconversion indices and percentage mineral volume formula. Error bars represent the standard error. Sample size (<i>n</i>) for controls = 22, 20 Gy = 4, 40 Gy = 5, 60 Gy = 4, 80 Gy = 4