. 2020 Fall;15(4):236–245. doi: 10.22037/iej.v15i4.26865

Table 2.

The mean (SD) values of the percentage of viable cells and of E. faecalis biofilm after intracanal medication treatment in all groups

Groups	Saline solution	CH	PDT	NAC	NAC+PDT
Percentage of viable cells (green)	Total biovolume
Percentage of viable cells (green)	76.90 (17.82) ^A	20.09 (24.13) ^B	26.95 (23.41)^B	32.63 (31.27)^B	28.85 (27.45)^B
Percentage of viable cells (green)	Cervical third
Percentage of viable cells (green)	69.17 (22.64) ^A	17.76 (19.11)^B	27.23 (26.79)^B	30.25 (30.96)^B	36.97 (30.13)^B
Percentage of viable cells (green)	Apical third
Percentage of viable cells (green)	73.80 (20.79) ^A	28.84 (30.64)^B	46.58 (36.16)^A	38.17 (31.38)^B	41.82 (40.28)^A

*Different uppercase letters in each row indicate significant differences between the groups regarding of percentage of viable cells (One-way ANOVA) (P<0.05)