Fig. 1

In vitro model set up. a) Illustration of the mould embedded in agarose gel (2 mg/ml) and the human dentin plate on the bottom with the collagen based cell donor compartment b) Cultivation for 4 and 8 days with exchange of the medium every other day c) Cell migration into the applied matrix, after 8 days incubation. Cells were visualized with a metabolic activity reagent (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, MTT)