highly significantP < 0.001
However, the intragroup comparison shows that pain reduction was highly significant ( P < 0.001) in three treatment groups (Group A, B, and C) as compared to the control group after 3 months [ Table 4.3 ]; there was no significant ( P > 0.05) difference in pain reduction between Group A, B and C after 3 months [ Table 4.3 ].