Research Article

Anti-Inflammatory and Antiosteoclastogenic Activities of Parthenolide on Human Periodontal Ligament Cells In Vitro

Figure 1

Effect of PTL on hPDLC proliferation. hPDLCs were exposed to PTL (1, 5, 10, and 20 μM) for 1, 3, and 7 days. Cell proliferation was measured using the MTT assay. The data are expressed as the percentage of the control (containing medium only). Error bars indicate mean ± SEM (). versus the control.