Table 2.

Levels of TNF-α, IL-1β and IL-17 (pg/ml) in GCF of patients in first and second term of study

Clinical indices	First term of study		Second term of study
	Group 1 (n = 24)	Group 2 (n = 14)	Group 1 (n = 24)		Group 2 (n = 14)
			Subgroup 1A (n = 18)	Subgroup 1B (n = 6)
TNF-α (pg/ml)	5.52 ± 0.94	5.42 ± 0.87	2.34 ± 0.87*	5.49 ± 0.84	5.27 ± 0.94
IL-1β (pg/ml)	20.74 ± 2.71	20.16 ± 2.46	6.83 ± 1.51*	19.86 ± 1.98	19.63 ± 2.21
IL-17 (pg/ml)	17.58 ± 3.23	17.23 ± 3.15	9.35 ± 1.71*	16.62 ± 2.29	15.93 ± 2.37

* The difference between the first and the second term is statistically significant in a given group of patients