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Distribution of pH measurements in plaques dosed with (DA) and without (DN) arginine dentifrice in the presence (C) and absence (R) of sucrose. Box plots: red, DN with sucrose; cyan, DA with sucrose; green, DN without sucrose; magenta, DA without sucrose. For details, see the legend to Fig. 1. pH was significantly (P < 0.001) higher in plaques during dosing with DA than in those dosed with DN in both resting and cariogenic plaques.
