Although, previous analysis of cDPCs showed increased expression of CD90 and CD146 compared to hDPCs these studies were performed on cDPCs isolated from teeth with irreversible pulpitis or from deep carious lesions (Alongi et al., 2010; Ma et al., 2012) and this may explain the differences between these studies and our current findings. The gene discussed is MCAM; the disease is pulpitis.