Table 2.
Mean time necessary for retreatment of different groups.
| Groups | Time required (mean) min |
|---|---|
| 1 | 8.36 |
| 2 | 5.32 |
| 3 | 5.08 |
| 4 | 9.08 |
| 5 | 5.58 |
| 6 | 5.13 |
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.