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.
After osteoblastic cells (MC3T3-E1) were seeded, they were exposed to 5 or 10 min Ki-energy once, and subsequently, incubated for 72 h in the presence of FBS. Then, the cell number was counted. The effect of 5-min Ki-exposure was not significant. The effect of 10 min was statistically significant (P < 0.01; indicated by *symbol).
