Table 3.

Pain degree at the initial stage of orthodontic treatment

	1 d	2 d	3 d	5 d	7 d
Control group (n=42)	3.84±1.08	4.91±1.38	6.24±1.51	2.74±1.15	1.74±0.97
Observation group (n=55)	3.21±0.99	4.23±1.24	5.49±1.44	2.26±1.17	1.39±0.58
t	2.9854	2.5482	2.4887	2.0168	2.2100
P	0.0036	0.0124	0.0145	0.0465	0.0295