Comparison of Calcium and Silicate Cement and Mineral Trioxide Aggregate Biologic Effects and Bone Markers Expression in MG63 Cells

Bone cell (MG63) biocompatibility and bone marker expression were compared after calcium and silicate base cement (CS) and mineral trioxide aggregate (MTA) treatment. X-ray diffraction was used to identify material surface structure, and tetrazolium bromide colorimetric assay was used to evaluate the cell viability. The relative mitogen activation protein kinase expression was compared with Western blot, and bone marker expression was evaluated with reverse transcriptase polymerization chain reaction. The results showed that CS and MTA are similar chemical structures and biocompatible with MG63 cells. CS and MTA cements showed good MG63 cell proliferation by high phosphor extracellular signal-regulated kinase expression levels. CS and MTA cements showed the evident type I collagen, osteocalcin, alkaline phosphatase, bone sialoprotein, and osteopontin expression. Both MTA and CS cements are biocompatible and appear to have osetoconduction effects on bone cells. (J Endod 2009;35:682-685)