Table 3.

Changes in probing pocket depth

	Control group PPD (mm)		Treatment group PPD (mm)
	Baseline	Follow-up*	Baseline	Follow-up*
Moeintaghavi A et al., 2012	2.06 (0.24)	2.33 (0.30)	2.31 (0.65)	2.21 (0.60)
Gay I et al., 2014	NR**	NR**	NR**	NR**
Engebretson S et al., 2013	3.28 (0.70)	3.15 (0.70)	3.26 (0.60)	2.82 (0.60)
Raman RPC et al., 2014	2.29 (0.69)	2.02 (0.71)	2.56 (0.57)	1.76 (0.19)
Telgi RL et al., 2013	5.05 (0.69)	5.03 (0.69)	5.05 (0.70)	4.59 (0.72)
Koromantzos PA et al., 2011	NR**	NR**	NR**	NR**

*Follow-up - 3-4 months, Data were expressed as mean (SD); **NR – Values are not reported in respective included study. SD – Standard deviation; PPD – Probing pocket depth; NR – Values are not reported in respective included study