Table 1.

Streptococcus mutans biofilm, with cinnamon water at various nicotine concentrations

Groups	Nicotine concentration	n	Mean	SD	Maximum	Minimum
With 2.5 mg/ml cinnamon water extract	0	12	0.22	0.072	0.128	0.386
	0.25	12	0.221	0.076	0.108	0.3
	0.5	12	0.244	0.03	0.180	0.289
	1	12	0.486	0.243	0.12	0.9
	2	12	0.988	0.111	0.586	1.123
	4	12	1.024	0.176	0.788	1.462
	8	12	0.048	0.003	0.038	0.076
	16	12	0.056	0.02	0.052	0.086
	32	12	0.054	0.028	0.038	0.088
Without 2.5 mg/ml cinnamon water extract	0	12	0.731	0.092	0.48	0.924
	0.25	12	0.724	0.112	0.566	0.886
	0.5	12	0.717	0.074	0.498	0.798
	1	12	0.722	0.164	0.386	0.924
	2	12	0.606	0.12	0.488	0.988
	4	12	0.887	0.152	0.653	1.047
	8	12	0.892	0.221	0.566	1.275
	16	12	0.066	0.002	0.037	0.086
	32	12	0.051	0.004	0.048	0.058

SD: Standard deviation