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.
Study subgroups according to thermo cycling and loading methods
| Group | Subgroup | Number of cycles | |
|---|---|---|---|
|
| |||
| Thermal | Loading | ||
| A | A1 | 0 | 0 |
| A2 | 500 | 100,000 | |
| A3 | 1000 | 200,000 | |
| A4 | 2000 | 400,000 | |
| B | B1 | 0 | 0 |
| B2 | 500 | 100,000 | |
| B3 | 1000 | 200,000 | |
| B4 | 2000 | 400,000 | |
Group A: the brackets were bonded by NBA without additives. Group B: the brackets were bonded by NBA containing AgNPs with concentration 0.05%
