Table 2.: Frequency of aberrant periodontal healing events.

	Control group	BMP group	Col group	BMP/Col group
Ankylosis	0/9	6/9	1/8	1/8
Epithelial downgrowth	8/9	5/9	8/8	5/8
Gingival recession	5/9	1/9	1/8	0/8