Table 2.

Comparison of probing pocket depth and clinical attachment level at different observation periods in different groups.

PPD	CHX + SRP	6.03 ± 0.81	3.87 ± 0.63	2.17 ± 0.38	<0.001**
	LASER + SRP	6.13 ± 0.90	4.17 ± 0.83	1.97 ± 0.41	<0.001**
	SRP (Control)	5.87 ± 0.68	4.80 ± 0.71	1.07 ± 0.25	<0.001**
CHX + SRP vs SRP p < 0.001**		LASER + SRP vs SRP p < 0.001**		CHX + SRP vs LASER + SRP p = 0.060
CAL	CHX + SRP	6.23 ± 0.90	4.97 ± 0.85	1.27 ± 0.45	<0.001**
	LASER + SRP	6.33 ± 0.90	5.20 ± 1.45	1.13 ± 0.35	<0.001**
	SRP (Control)	6.00 ± 1.02	5.37 ± 0.93	0.63 ± 0.49	<0.001**
CHX + SRP vs SRP p < 0.001**		LASER + SRP vs SRP p < 0.001**		CHX + SRP vs LASER + SRP p = 0.200