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.
Comparison of mean retentive force between bar and clip attachment system and locator attachment system in the posterior region
| Posterior region | Mean±SD | Mann-Whitney test | P |
|---|---|---|---|
| Group 1 | 25.06±2.67 | 2.000 | 0.083 |
| Group 2 | 16.68±5.78 |
SD: Standard deviation
