Fig. 2From: A randomised clinical study investigating efficacy of a stannous fluoride toothpaste in improving gingival health after 3 weeks’ useMean Bleeding Index (BI) score ± standard error* (modified intent to treat population). *Raw mean at baseline (pre-prophylaxis); adjusted mean at Weeks 2 and 3 (post-prophylaxis following baseline assessment). BI score ranges from 0 (no bleeding at 30 s after probing) to 2 (immediate bleeding on probing)Back to article page