References Extraction location Preservation method Difference
(initial vs follow-up) 		Control group Period observation
Nam et al. [47] Various Group A - bovine bone mineral:
OSC-B (Nano - Intelligent Bioengineering, Seoul, Korea)
vs
Synthetic oligopeptide - Ossegen-X15 (Nano Intelligent)
vs
collagen membrane - Bio-Gide® 		Vertical buccal:
15.8/16 vs 12.7/11.8 		42/15 6 - 8 months
Vertical lingual:
13.9/13.8 vs 11.8/12.7
Width:
9.1/9 vs 7.9/7.7