Table 3.

Least significant difference Post hoc analysis results

Group	Mean difference	P
Control versus CHX	−4.74	0.013*
Control versus EDTA	−1.01	0.571
Control versus DO	−1.86	0.323
CHX versus EDTA	3.73	0.416
CHX versus DO	2.88	0.130
EDTA verrsus DO	−0.85	0.643

P≤0.05 is significant. EDTA: Ethylenediaminetetraacetic acid; DO: Doxycycline; CHX: Chlorhexidine