Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The percentage of new bone formation in all groups at 4, 8, and 12 weeks postoperatively. The percentage of new bone formation in all groups was gradually increased over time and lower in group Blank than in the other two groups at different times, and there were no significant differences between the group SN and group VB at 4, 8, and 12 weeks after surgery. *P < 0.05 versus group Blank; # P > 0.05 versus group SN.
