FIGURE 4.
Survival curves (with robust standard errors) by (A) number of units; (B) implant length; (C) immediate implantation; (D) GBR surgery
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.