Table 2 (Abstract O47).

Comparison of VAS scores of patients before and after treatment

Group/Rating	VAS scores
	Before treatment	3 months	6 months	9 months
Control group (n = 30)	6.22 ± 1.21	5.48 ± 1.25	5.72 ± 1.55	5.85 ± 1.35
Observation Group I (n = 30)	5.93 ± 1.11	4.33 ± 1.42	4.37 ± 1.32	4.82 ± 1.22
Observation Group II (n = 30)	6.13 ± 1.02	3.52 ± 1.41	4.29 ± 1.22	3.79 ± 1.01
Observation Group III (n = 30)	6.01 ± 1.03	2.22 ± 1.03	2.59 ± 1.03	3.42 ± 1.05
Observation Group IV (n = 30)	5.98 ± 1.31	3.16 ± 1.11	3.34 ± 1.23	3.88 ± 1.21
t	0.023	4.592	4.203	4.024
P	> 0.05	< 0.05	< 0.05	< 0.05