The unique biological properties of mesenchymal stem cells, along with continuous progress in clinical research in regenerative medicine and cell-based therapies, offer new hope for overcoming a wide range of stubborn diseases. To ensure that a healthy and viable “seed of life” is available when stem cell therapies become clinically routine, it has become an internationally accepted practice to preserve umbilical cord mesenchymal stem cells and dental pulp stem cells from exfoliated deciduous teeth during a child’s early years. Since the extraction and preparation of mesenchymal stem cells must be carried out in specialized laboratories using dedicated reagents and professional testing equipment to guarantee the quality and activity of the isolated stem cells, and since their preservation requires constant, stable storage conditions。