Table 2.

Infective related events of the total population and comparison between the two groups of patients: subjects in the envelope group vs. the control group

Clinical Event	Total (N = 1819)	Envelope (N = 872)	Control (N = 947)	P-Value
At least one infection-related clinical event (Systemic or Pocket infection)	1.6% (30/1819)	0.8% (7/872)	2.4% (23/947)	0.007
Pocket infection	1.5% (27/1819)	0.6% (5/872)	2.3% (22/947)	0.002
Systemic infection	0.2% (3/1819)	0.2% (2/872)	0.1% (1/947)	0.516

Significative P-values are in bold.