Table 2.

Mean and standard deviation (mean±sd) of the tongue coating pH in the studied groups

Group	n		Phase
		before	after	30min
SC	10	7.40±0.52	7.10±0.32	7.50±0.53
TS	10	7.30±0.48	7.50±0.53	7.20±0.42
ES	10	7.40±0.52	5.90±0.74	7.10±0.32
EO	10	7.30±0.48	7.40±0.52	7.20±0.42
CTRL	10	7.10±0.32	7.20±0.42	7.40±0.52
All	50	7.30±0.46	7.02±0.77	7.28±0.45