Table 3.

Summary of Modified Gingival Index over time

Time point	Mean Modified Gingival Index (±SD)		Between Treatment Comparison*
	0.1% o-cymen-5-ol/ 0.6%ZnCl2 (N = 112)	0.204% Sodium Fluoride (N = 112)	Mean Difference (%)	95% CI	P-value
Pre-Prophy Baseline	1.89 ± 0.211	1.91 ± 0.195
Randomisation	0.45 ± 0.258	0.44 ± 0.246
Week 6	1.52 ± 0.207	1.75 ± 0.192	−0.21 (−12.3%)	−0.24, −0.19	<0.0001
Week 12**	0.96 ± 0.267	1.56 ± 0.192	−0.59 (−38.1%)	−0.64, −0.55	<0.0001

^*0.1%w/w o-cymen-5-ol/ 0.6%w/w zinc chloride (ZnCl₂) dentifrice vs 0.204%w/w sodium fluoride dentifrice, a negative difference favours the experimental dentifrice. Comparison based on model-adjusted means.

^**N = 104 and N = 101 were assessed in each group respectively at Week 12.