Table 2.

Changes in clinical parameters over time

	Groups
Parameters & Time	Mechanical Debridement	Diode Laser	Combined	P-value
PD (mm)
Baseline	5.14 ± 0.60	6.32 ± 0.60a)	6.28 ± 0.62a)	< 0.05
4th week	4.90 ± 0.66c)	5.49 ± 0.67c)	5.37 ± 0.60c)	0.103
12th week	4.72 ± 0.72c), d)	5.36 ± 0.50c)	5.04 ± 0.49c), d)	0.062
P-value	0.000	0.000	0.000
CAL (mm)
Baseline	3.88 ± 0.88	4.62 ± 0.61a)	4.08 ± 0.60b)	0.037
4th week	3.62 ± 0.88c)	4.49 ± 0.64a), c)	3.78 ± 0.58b), c)	0.010
12th week	3.54 ± 0.83c), d)	4.18 ± 0.76c), d)	3.68 ± 0.65c)	0.074
P-value	0.000	0.000	0.000
mPI
Baseline	1.81 ± 0.18	2.23 ± 0.53a)	2.12 ± 0.56	0.023
4th week	1.56 ± 0.21c)	1.35 ± 0.44c)	1.37 ± 0.39c)	0.202
12th week	1.48 ± 0.28c)	1.13 ± 0.33a), c), d)	1.06 ± 0.15a), c), d)	0.000
P-value	0.000	0.000	0.000
GI
Baseline	1.81 ± 0.23	2.04 ± 0.29	1.94 ± 0.27	0.078
4th week	1.50 ± 0.38c)	1.40 ± 0.42a), c)	1.10 ± 0.19b), c)	0.009
12th week	1.31 ± 0.38c), d)	1.10 ± 0.22c), d)	1.02 ± 0.07a), c)	0.022
P-value	0.000	0.000	0.000

PD, CAL; Probing depth, Clinical attachment level

a), significant differences from group 1

b), significant differences from group 2

c), significant differences from baseline

d), significant differences from 4th week