Fig. 3
From: In vitro effects of hyaluronic acid on human periodontal ligament cells
Proliferation assay of PDL cells seeded with HA_ncl and HA_cl at (a) 1, (b) 3 and (c) 5 days post seeding. It was found that both HA and HA_cl at dilutions of 1:100 and 1:10 significantly increased cell numbers at 3 days and 5 days post seeding when compared to control samples (†denotes significantly higher than control, p < 0.05)