Evaluation of Resins for Stereolithographic 3D-Printed Surgical Guides: The Response of L929 Cells and Human Gingival Fibroblasts

Figure 2

Response of L929 and gingival fibroblast activity to printed and nonpostcured Clear and Dental SG resins in an indirect cell culture model. L929 cells ((a), (c), and (e)) and gingival fibroblasts ((b), (d), and (f)) were exposed to printed Clear resin or Dental SG resin specimens which were not postcured. 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. , resin versus W/O; the color of indicates the specific resin; , Clear versus Dental SG.

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