Table 1.

Values of clinical indices (mean ± SD) in patients with moderate chronic periodontitis 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)
PL.I	1.61 ± 0.31	1.64 ± 0.29	1.65 ± 0.26	1.76 ± 0.38	1.72 ± 0.34
GI	1.33 ± 0.29	1.36 ± 0.31	1.21 ± 0.36	1.29 ± 0.24	1.31 ± 0.27
SBI	1.69 ± 0.35	1.73 ± 0.32	1.24 ± 0.31*	1.67 ± 0.36	1.75 ± 0.31
PPD	3.35 ± 0.32	3.39 ± 0.36	3.06 ± 0.35*	3.26 ± 0.45	3.34 ± 0.38
CAL	3.47 ± 0.38	3.49 ± 0.35	3.16 ± 0.27*	3.53 ± 0.34	3.56 ± 0.41

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