Table 2.

Clinical parameters of sampling areas.

		SRP + OT (n = 18) (Mean ± SD)	Between Groups P valuesa	SRP-alone (n = 18) (Mean ± SD)
Sampling Areas Measurements	PI
	Baseline	1.23 ± 0.46	N.S	1.27 ± 0.43
	Within the group	P = 0.003*		P = 0.005*
	Month 3	0.73 ± 0.30	N.S	0.78 ± 0.34
	GI
	Baseline	1.58 ± 0.33	N.S	1.61 ± 0.32
	Within the group	P = 0.002*		P = 0.004*
	Month 3	1.03 ± 0.28	N.S	1.14 ± 0.24
	PPD (mm)
	Baseline	5.87 ± 1.13	N.S	5.91 ± 1.05
	Within the group	P = 0.002*		P = 0.002*
	Month 3	3.96 ± 0.95	N.S	3.98 ± 0.92
	Interproximal sites with PPD >5 mm (%)
	Baseline	39.87 ± 7.74	N.S	40.47 ± 7.66
	Within the group	P = 0.001*		P = 0.001*
	Month 3	27.97 ± 6.14	N.S	26.18 ± 6.13
	BOP (%)
	Baseline	69.44 ± 12.54	N.S	67.42 ± 18.95
	Within the group	P = 0.001*		P = 0.001*
	Month 3	15.55 ± 18.60	N.S	19.44 ± 22.15

*P < 0.05, Mann Whitney-U test.

SRP: Scaling and root planning, OT: Ozone therapy, PI: Plaque index, GI: Gingival index, PD: probing depth, BOP: Bleeding on probing, SD: Standard deviation, N.S: Non significant.

^aComparison of PI, GI, PD, BOP values between SRP + OT and SRP-alone groups by Mann Whitney-U test.