Adolescent 1 Alkaline Phosphatase 1 Animals 1 Cell Differentiation 1 Cell Proliferation 1 Cell Survival 1 Cells, Cultured 1 Dental Sac 1 Down-Regulation 1 Enzyme-Linked Immunosorbent Assay 1 Female 1 Humans 1 Immunohistochemistry 1 Male 1 Mass Spectrometry 1 Mice 1 Nitric Oxide 1 Osteogenesis 1 Polymerase Chain Reaction 1 Staining and Labeling 1 Stem Cells 1 Transforming Growth Factor beta2 Young Adult 1 adolescent 1 alkaline phosphatase 1 animal 1 bone development 1 cell culture 1 cell differentiation 1 cell proliferation 1