Abstract
To examine the cytotoxicity and genetic expression of SHEDs cultured in eluates of various calcium silicate based pulpotomy materials. MTT assay, flow cytometry, alizarin red staining and scratch assay was used to assess the cellular viability, apoptosis, calcium matrix deposits and cell migration respectively. The gene expression of ALP, OCN and BMP -2, were measured with rtPCR. One way ANNOVA and Bonferroni post test was used for statistical analysis. MTT assay analysis reported that all the test specimen had no cytotoxic effects. The highest number of live cells [ % ] was found in RetroMTA. The highest percentage of cell migration was observed in SHEDs cultured in EndoCem Zr. The mean absorbance for calcium matrix deposition was higher or similar in all test specimens, when compared to control groups. The expression of BMP -2 and OCN were significantly higher in cells exposed to RetroMTA and NeoMTA respectively after 24 hrs of incubation. After 72 hrs of incubation the mRNA expression of ALP was significantly higher in MTA. SHEDs cultured in eluates of various calcium silicate based cements exhibited cytocompatibility and maintained odontogenic like phenotype differentiation in SHEDs.
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