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Cellular metabolism (SDH enzyme production detected by MTT assay) of odontoblast-like cells on the pulpal side of dentin disks following different concentrations of EDC solutions applied on the occlusal side of 0.4 mm-thick dentin discs. Columns are mean absorbance (570 nm) and error bars are standard-deviations, n=12. Columns connected by the horizontal line do not differ statistically.
