Fig. 2From: Gingivitis efficacy of a 0.454% w/w stannous fluoride dentifrice: a 24-week randomized controlled trial% distribution of subjects with < 10, > 10 < 30, and > 30% bleeding sites by treatment and timepoint. The percentage of bleeding sites at each timepoint was calculated as the number of sites with a bleeding score of 1 or 2, expressed as a percentage of the total number of bleeding sites assessedBack to article page