3. Control versus Emdogain: PPD at 1 year.

Study	Parallel group/Split mouth	EMD n mean (SD)	Control n  mean (SD)	Difference n mean (SE)
Silvestri 2000	P	10  4.9 (1.79)	10  1.40 (1.26)	20  3.5 (0.69)
Tonetti 2002	P	83  3.9 (1.7)	83  3.3 (1.7)	166 0.60 (0.26)
Zucchelli 2002	P	30  5.1 (0.7)	30  4.5 (1.0)	60  0.60 (0.22)
Francetti 2004	P	12  4.71 (1.60)	12  2.57 (1.27)	24  2.14 (0.59)
Grusovin 2009	P	15  3.9 (1.0)	15  4.2 (1.6)	30  0.3 (0.49)
Heijl 1997	S	31  3.3 (1.4)	31  2.6 (1.2)	31  0.70 (0.25)
Pontoriero 1999	S	10  4.4	10  3.5	10  0.7 (0.47)
Okuda 2000	S	16  3.0 (0.97)	16  2.22 (0.81)	16  0.78 (0.32)
Rosing 2005	S	14  4.17 (1.80)	14  4.39 (1.14)	14  ‐0.22 (0.57) (0.64)*

*authors' value from e‐mail
 PPD = probing pocket depth
 SD = standard deviation
 SE = standard error