From: A collagen membrane for periosteal expansion osteogenesis using a timed-release system in rabbit calvaria
Post-ope. 5 weeks (mean ± SD)
Post-ope. 8 weeks (mean ± SD)
C1
E1
C2
E2
Ratio of TBV/EV (%)
55.8 ± 12.2
54.7 ± 13.1
57.2 ± 11.7
61.4 ± 11.3
p value
0.885
0.545