Figure 3.

Response of L929 and gingival fibroblast activity to printed and postcured Clear resin and Dental SG resin specimens in an indirect monolayer culture model. L929 cells ((a), (c), and (e)) and gingival fibroblasts ((b), (d), and (f)) were exposed to printed and postcured Clear resin or Dental SG resin specimens. Then cells were subjected to MTT ((a), (b)) and resazurin-based toxicity assays ((c), (d)). Furthermore MTT staining was performed ((e), (f)). Data are given as mean ± standard deviation and are presented relative to the untreated control (W/O). Four independent experiments were performed. ^∗p < 0.05, resin versus W/O; the color of ∗ indicates the specific resin.