This book provides complete insight of dental stem cells, their inherent potential to regenerate and reconstruct in vitro as well as in vivo all the mechanisms that nature uses during initiation and morphogenesis of given organ.Stem cell research proves Pro life paves the path for life.These stem cells can be harvested from dental pulp, periodontal ligament, alveolar bone marrow, expanded, embedded in a appropriate scaffold, and transplanted back into defect to regenerate bone and tooth structures. These cells have potential to regenerate dentin, periodontal ligament, cementum and can be used for bone defect therapy.