Table 8: Comparison in the global group (test and control groups taken together) of the peri-implant bone loss in patients with a history of periodontitis now stabilized versus those without.

–		History of Periodontitis now Stabilized	N	Mean (mm)	SD (mm)	P-value
Rx 6 Mes	Yes		87	0.9011	0.8319	0.667
	No		119	0.9462	0.6673
Rx 6 Dis	Yes		87	0.8920	0.8601	0.480
	No		119	0.9685	0.6910
Rx 12 Mes	Yes		39	0.9090	0.5742	0.075
	No		34	1.1824	0.7162
Rx 12 Dis	Yes		39	0.9474	0.6367	0.027*
	No		34	1.3309	0.8113