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 bone-implant-contact (BIC) measurements of threads is demonstrated.
| Type of screw | BIC in % | ± in % |
|---|---|---|
| CCZTC | 39.1 | 22.4 |
| TANNEW | 38.0 | 23.5 |
| PTST | 36.5 | 23.5 |
| TANST | 34.8 | 22.0 |
| CCTC | 33.6 | 23.1 |
| Steel | 23.2 | 18.8 |
| CC | 14.0 | 13.6 |
Note that steel and cobalt chrome have significantly less contact compared to all other type of materials. The chrome based implants either coated with zirconium (CCZTC) or titanium (CCTC) show equal BIC values than the other titanium based screw implants
