Table 2.

Group pairs comparison by Mann-Whitney U test (P-values

Group	Normal saline	5.25% NaOCl	2.6% NaOCl	CHX*
MTAD	0.684	0.000	0.007	0.003
Normal saline	٭	0.000	0.000	0.000
5.25% NaOCl	*	*	0.019	0.000
2.6% NaOCl	*	*	*	0.000

*2% Chlorhexidine gluconate