Group n= Mean Sd P-value 2(Test) 17 3.52 1.43 df=25 t=5.29 p<0.001 5(Control) 10 1.07 0.34 The results indicate that there is a statistically significant difference between mean concentration of IL-1β in GCF for group 3 and 5 (df=25, t=5.29, p<0.001)

Table 3.2: Comparison of TNF-α concentration in GCF between Group 2 and Group 5.