Table 1: Mean pH at different time intervals

I.D.		Baseline pH		5 minutes		10 minutes		15 minutes		30 minutes		120 minutes
1		7.18		7.03		6.99		7.04		7.16		7.28
2		7.3		7.21		7.37		7.35		7.43		7.49
3		7.21		6.79		6.93		6.97		6.97		7.16
4		7.35		6.8		7.05		7.19		7.15		7.38
Significance (p-value)		0.41		0.007*		0.005*		0.001*		0.01*		0.02*

*Statistically significant values obtained using Kruskal-Wallis test