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.
Effects of PRF exudate on the proliferation of hPDLCs in vitro. The proliferation activity of hPDLSCs was promoted by PRF exudates in a dose-dependent manner. E1, 100%, E2, 20%; E3, 4% PRF exudate. *P<0.05 and **P<0.01. hPDLCs, primary human periodontal ligament cells; PRF, platelet-rich fibrin; OD, optical density.
